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Langer pleures examen

What is a characteristic of a fault tolerant network?

A network that protects confidential information from unauthorized access

A network that can expand quickly to support new users and applications without impacting the performance of the service delivered to existing users

A network that supports a mechanism for managing congestion and ensuring reliable delivery of content to all users

A network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failure

Three bank employees are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other corporate managers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?

Audio conference, financial transactions, web page

Financial transactions, web page, audio conference

Audio conference, web page, financial transactions

Financial transactions, audio conference, web page

What is a benefit of using cloud computing in networking?

End users have the freedom to use personal tools to access information and communicate across a business network.

Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.

Technology is integrated into every-day appliances allowing them to interconnect with other devices, making them more ‘smart’ or automated.

Home networking uses existing electrical wiring to connect devices to the network wherever there is an electrical outlet, saving the cost of installing data cables.

What is the function of the shell in an OS?

It interacts with the device hardware.

It interfaces between the users and the kernel.

It provides dedicated firewall services.

It provides the intrusion protection services for the device.

Which connection provides a secure CLI session with encryption to a Cisco switch?

A console connection

An AUX connection

A Telnet connection

An SSH connection

A network technician is attempting to configure an interface by entering the following command: SanJose(config)# ip address 192.168.2.1 255.255.255.0. The command is rejected by the device. What is the reason for this?

The command is being entered from the wrong mode of operation.

The command syntax is wrong.

The subnet mask information is incorrect.

The interface is shutdown and must be enabled before the switch will accept the IP address

An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes?

To restart the ping process

To interrupt the ping process

To exit to a different configuration mode

To allow the user to complete the command

Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator uses a console connection to connect to the switch, which password is needed to access user EXEC mode?

Letmein

Secretin

Lineconin

Linevtyin

On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?

FastEthernet0/1

VLAN 1

Vty 0

Console 0

What protocol is responsible for controlling the size of segments and the rate at which segments are exchanged between a web client and a web server?

TCP

HTTP

Ethernet

What is an advantage to using a protocol that is defined by an open standard?

A company can monopolize the market.

The protocol can only be run on equipment from a specific vendor

An open standard protocol is not controlled or regulated by standards organizations.

It encourages competition and promotes choices.

What are two benefits of using a layered network model? (Choose two.)

It assists in protocol design.

It speeds up packet delivery.

It prevents designers from creating their own model.

It prevents technology in one layer from affecting other layers.

It ensures a device at one layer can function at the next higher layer.

Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.)

Data link

Network

Physical

Session

Transport

Which name is assigned to the transport layer PDU?

Bits

Data

Frame

Packet

Segment

A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized?

Presentation layer

Network layer

Physical layer

Data link layer

A network administrator is measuring the transfer of bits across the company backbone for a mission critical financial application. The administrator notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)

The amount of traffic that is currently crossing the network

The sophistication of the encapsulation method applied to the data

The type of traffic that is crossing the network

The latency that is created by the number of network devices that the data is crossing

The bandwidth of the WAN connection to the Internet

The reliability of the gigabit Ethernet infrastructure of the backbone

What is a characteristic of UTP cabling?

Cancellation

Cladding

Immunity to electrical hazards

Woven copper braid or metallic foil

What are two characteristics of fiber-optic cable? (Choose two.)

It is not affected by EMI or RFI.

Each pair of cables is wrapped in metallic foil.

It combines the technique of cancellation, shielding, and twisting to protect data.

It typically contains 4 pairs of fiber-optic wires

It is more expensive than UTP cabling is.

What is a characteristic of the LLC sublayer?

It provides the logical addressing required that identifies the device.

It provides delimitation of data according to the physical signaling requirements of the medium.

It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media

It defines software processes that provide services to the physical layer.

A network team is comparing physical WAN topologies for connecting remote sites to a headquarters building. Which topology provides high availability and connects some, but not all, remote sites?

Mesh

Partial mesh

Hub and spoke

Point-to-point

What method is used to manage contention-based access on a wireless network?

CSMA/CD

Priority ordering

CSMA/CA

Token passing

What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)

Error correction through a collision detection method

Session control using port numbers

Data link layer addressing

Placement and removal of frames from the media

Detection of errors through CRC calculations

Delimiting groups of bits into frames

Conversion of bits into data signals

What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?

It will discard the frame

It will forward the frame to the next host.

It will remove the frame from the media.

It will strip off the data-link frame to check the destination IP address.

Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?

Cut-through switching

Store-and-forward switching

Fragment-free switching

Fast-forward switching

Refer to the exhibit. If host A sends an IP packet to host B, what will the destination address be in the frame when it leaves host A?

DD:DD:DD:DD:DD:DD

172.168.10.99

CC:CC:CC:CC:CC:CC

172.168.10.65

BB:BB:BB:BB:BB:BB

AA:AA:AA:AA:AA:AA

What addresses are mapped by ARP?

Destination MAC address to a destination IPv4 address

Destination IPv4 address to the source MAC address

Destination IPv4 address to the destination host name

Destination MAC address to the source IPv4 address

What are two services provided by the OSI network layer? (Choose two.)

Performing error detection

Routing packets toward the destination

Encapsulating PDUs from the transport layer

Placement of frames on the media

Collision detection

What are two functions of NVRAM? (Choose two.)

To store the routing table

To retain contents when power is removed

To store the startup configuration file

To contain the running configuration file

To store the ARP table

Refer to the exhibit. What will be the result of entering this configuration the next time a network administrator connects a console cable to the router and no additional commands have been entered?

The administrator will be required to enter Cisco123.

The administrator will be required to enter Cisco234.

The administrator will be required to enter Cisco789.

The administrator will be presented with the R1> prompt.

What is the dotted decimal representation of the IPv4 address 11001011.00000000.01110001.11010011?

192.0.2.199

198.51.100.201

203.0.113.211

209.165.201.223

What are three characteristics of multicast transmission? (Choose three.)

The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255.

A single packet can be sent to a group of hosts.

Multicast transmission can be used by routers to exchange routing information.

Routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255.

Computers use multicast transmission to request IPv4 addresses.

Multicast messages map lower layer addresses to upper layer addresses.

What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)

10.0.0.0/8

64.100.0.0/14

127.16.0.0/12

172.16.0.0/12

192.31.7.0/24

192.168.0.0/16

What purpose does NAT64 serve in IPv6?

It converts IPv6 packets into IPv4 packets.

It translates private IPv6 addresses into public IPv6 addresses.

It enables companies to use IPv6 unique local addresses in the network.

It converts regular IPv6 addresses into 64-bit addresses that can be used on the Internet.

It converts the 48-bit MAC address into a 64-bit host address that can be used for automatic host addressing.

What is the most compressed representation of the IPv6 address 2001:0000:0000:abcd:0000:0000:0000:0001?

2001:0:abcd::1

2001:0:0:abcd::1

2001::abcd::1

2001:0000:abcd::1

2001::abcd:0:1

Which range of link-local addresses can be assigned to an IPv6-enabled interface?

FEC0::/10

FDEE::/7

FE80::/10

FF00::/8

How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?

254

190

192

A site administrator has been told that a particular network at the site must accommodate 126 hosts. Which subnet mask would be used that contains the required number of host bits?

255.255.255.0

255.255.255.128

255.255.255.224

255.255.255.240

Which subnet would include the address 192.168.1.96 as a usable host address?

192.168.1.64/26

192.168.1.32/27

192.168.1.32/28

192.168.1.64/29

Which statement is true about variable-length subnet masking?

Each subnet is the same size.

The size of each subnet may be different, depending on requirements.

Subnets may only be subnetted one additional time.

Bits are returned, rather than borrowed, to create additional subnets.

Which scenario describes a function provided by the transport layer?

A student is using a classroom VoIP phone to call home. The unique identifier burned into the phone is a transport layer address used to contact another network device on the same network.

A student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header.

A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.

A corporate worker is accessing a web server located on a corporate network. The transport layer formats the screen so the web page appears properly no matter what device is being used to view the web site.

A user opens three browsers on the same PC to access www.cisco.com to search for certification course information. The Cisco web server sends a datagram as a reply to the request from one of the web browsers. Which information is used by the TCP/IP protocol stack in the PC to identify which of the three web browsers should receive the reply?

The destination IP address

The destination port number

The source IP address

The source port number

What are two ways that TCP uses the sequence numbers in a segment? (Choose two.)

To identify missing segments at the destination

To reassemble the segments at the remote location

To specify the order in which the segments travel from source to destination

To limit the number of segments that can be sent out of an interface at one time

To determine if the packet changed during transit

Which two tasks are functions of the presentation layer? (Choose two.)

Compression

Addressing

Encryption

Session control

Authentication

What is a key characteristic of the peer-to-peer networking model?

Wireless networking

Social networking without the Internet

Network printing using a print server

Resource sharing without a dedicated server

A technician can ping the IP address of the web server of a remote company but cannot successfully ping the URL address of the same web server. Which software utility can the technician use to diagnose the problem?

Tracert

Ipconfig

Netstat

Nslookup

Which domain name would be an example of a top-level domain?

Www.cisco.com

Cisco.com

.com

Root.cisco.com

A PC obtains its IP address from a DHCP server. If the PC is taken off the network for repair, what happens to the IP address configuration?

The configuration is permanent and nothing changes.

The address lease is automatically renewed until the PC is returned.

The address is returned to the pool for reuse when the lease expires.

The configuration is held by the server to be reissued when the PC is returned.

A wireless host needs to request an IP address. What protocol would be used to process the request?

FTP

HTTP

DHCP

ICMP

SNMP

Which example of malicious code would be classified as a Trojan horse?

Malware that was written to look like a video game

Malware that requires manual user intervention to spread between systems

Malware that attaches itself to a legitimate program and spreads to other programs when launched

Malware that can automatically spread from one system to another by exploiting a vulnerability in the target

When applied to a router, which command would help mitigate brute-force password attacks against the router?

Exec-timeout 30

Service password-encryption

Banner motd $Max failed logins = 5$

A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this requirement?

LAN

MAN

WAN

WLAN

A home user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP connection type should be used?

DSL

Dial-up

Satellite

Cell modem

Cable modem

How does quality of service help a network support a wide range of applications and services?

By limiting the impact of a network failure

By allowing quick recovery from network failures

By providing mechanisms to manage congested network traffic

By providing the ability for the network to grow to accommodate new users

On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?

FastEthernet0/1

VLAN 1

Vty 0

Console 0

After making configuration changes on a Cisco switch, a network administrator issues a copy running-config startup-config command. What is the result of issuing this command?

The new configuration will be stored in flash memory.

The new configuration will be loaded if the switch is restarted.

The current IOS file will be replaced with the newly configured file.

The configuration changes will be removed and the original configuration will be restored.

Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator has already logged into a Telnet session on the switch, which password is needed to access privileged EXEC mode?

letmein

Secretin

lineconin

Linevtyin

Which connection provides a secure CLI session with encryption to a Cisco switch?

A console connection

An AUX connection

A Telnet connection

An SSH connection

A console connection

An AUX connection

A Telnet connection

An SSH connection

The command is being entered from the wrong mode of operation.

The command syntax is wrong.

The subnet mask information is incorrect.

The interface is shutdown and must be enabled before the switch will accept the IP address

What function does pressing the Tab key have when entering a command in IOS?

It aborts the current command and returns to configuration mode.

It exits configuration mode and returns to user EXEC mode.

It moves the cursor to the beginning of the next line.

It completes the remainder of a partially typed word in a command.

What protocol is responsible for controlling the size of segments and the rate at which segments are exchanged between a web client and a web server?

TCP

HTTP

Ethernet

What layer is responsible for routing messages through an internetwork in the TCP/IP model?

Internet

Transport

Network access

Session

Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?

Data is sent from the internet layer to the network access layer.

Packets are sent from the network access layer to the transport layer.

Segments are sent from the transport layer to the internet layer.

Frames are sent from the network access layer to the internet layer.

What unique address is embedded in an Ethernet NIC and used for communication on an Ethernet network?

Host address

IP address

MAC address

Network address

Presentation layer

Network layer

Physical layer

Data link layer

The amount of traffic that is currently crossing the network

The sophistication of the encapsulation method applied to the data

The type of traffic that is crossing the network

The latency that is created by the number of network devices that the data is crossing

The bandwidth of the WAN connection to the Internet

The reliability of the gigabit Ethernet infrastructure of the backbone

Which procedure is used to reduce the effect of crosstalk in copper cables?

Requiring proper grounding connections

Twisting opposing circuit wire pairs together

Wrapping the bundle of wires with metallic shielding

Designing a cable infrastructure to avoid crosstalk interference

Avoiding sharp bends during installation

What is a characteristic of the LLC sublayer?

It provides the logical addressing required that identifies the device.

It provides delimitation of data according to the physical signaling requirements of the medium.

It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.

It defines software processes that provide services to the physical layer.

What method is used to manage contention-based access on a wireless network?

CSMA/CD

Priority ordering

CSMA/CA

Token passing

During the encapsulation process, what occurs at the data link layer for a PC connected to an Ethernet network?

An IP address is added.

The logical address is added.

The physical address is added.

The process port number is added.

What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)

Error correction through a collision detection method

Session control using port numbers

Data link layer addressing

Placement and removal of frames from the media

Detection of errors through CRC calculations

Delimiting groups of bits into frames

Conversion of bits into data signals

What are two characteristics of Ethernet MAC addresses? (Choose two.)

They are globally unique.

They are routable on the Internet.

They are expressed as 12 hexadecimal digits

MAC addresses use a flexible hierarchical structure.

MAC addresses must be unique for both Ethernet and serial interfaces on a device.

If a device receives an Ethernet frame of 60 bytes, what will it do?

Drop the frame

Process the frame as it is

Send an error message to the sending device

Add random data bytes to make it 64 bytes long and then forward it

What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?

It will discard the frame.

It will forward the frame to the next host.

It will remove the frame from the media.

It will strip off the data-link frame to check the destination IP address.

Under which two circumstances will a switch flood a frame out of every port except the port that the frame was received on? (Choose two.)

The frame has the broadcast address as the destination address.

The destination address is unknown to the switch.

The source address in the frame header is the broadcast address.

The source address in the frame is a multicast address.

The destination address in the frame is a known unicast address.

Which switching method has the lowest level of latency?

Cut-through

Store-and-forward

Fragment-free

Fast-forward

Which two commands can be used on a Windows host to display the routing table? (Choose two.)

Netstat -s

Route print

Show ip route

Netstat -r

Tracert

Which two functions are primary functions of a router? (Choose two.)

Packet forwarding

Microsegmentation

Domain name resolution

Path selection

Flow control

What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)

10.0.0.0/8

64.100.0.0/14

127.16.0.0/12

172.16.0.0/12

192.31.7.0/24

192.168.0.0/16

What purpose does NAT64 serve in IPv6?

It converts IPv6 packets into IPv4 packets.

It translates private IPv6 addresses into public IPv6 addresses.

It enables companies to use IPv6 unique local addresses in the network.

It converts regular IPv6 addresses into 64-bit addresses that can be used on the Internet.

It converts the 48-bit MAC address into a 64-bit host address that can be used for automatic host addressing.

What is the binary representation of 0xCA?

10111010

11010101

11001010

11011010

At a minimum, which address is required on IPv6-enabled interfaces?

Link-local

Unique local

Site local

Global unicast

Which service provides dynamic global IPv6 addressing to end devices without using a server that keeps a record of available IPv6 addresses?

Stateful DHCPv6

SLAAC

Static IPv6 addressing

Stateless DHCPv6

What is the purpose of the command ping ::1?

It tests the internal configuration of an IPv6 host.

It tests the broadcast capability of all hosts on the subnet.

It tests the multicast connectivity to all hosts on the subnet.

It tests the reachability of the default gateway for the network.

How many usable IP addresses are available on the 192.168.1.0/27 network?

256

254

Which subnet would include the address 192.168.1.96 as a usable host address?

192.168.1.64/26

192.168.1.32/27

192.168.1.32/28

192.168.1.64/29

A network administrator wants to have the same subnet mask for three subnetworks at a small site. The site has the following networks and numbers of devices: Subnetwork A: IP phones – 10 addresses Subnetwork B: PCs – 8 addresses Subnetwork C: Printers – 2 addresses

255.255.255.0

255.255.255.240

255.255.255.248

255.255.255.252

Which statement is true about variable-length subnet masking?

Each subnet is the same size.

The size of each subnet may be different, depending on requirements.

Subnets may only be subnetted one additional time.

Bits are returned, rather than borrowed, to create additional subnets.

What are two characteristics shared by TCP and UDP? (Choose two.)

Default window size

Connectionless communication

Port numbering

3-way handshake

Ability to to carry digitized voice

Use of checksum

Why are port numbers included in the TCP header of a segment?

To indicate the correct router interface that should be used to forward a segment

To identify which switch ports should receive or forward the segment

To determine which Layer 3 protocol should be used to encapsulate the data

To enable a receiving host to forward the data to the appropriate application

To allow the receiving host to assemble the packet in the proper order

Which two protocols operate at the highest layer of the TCP/IP protocol stack? (Choose two.)

DNS

Ethernet

POP

TCP

UDP

What is one difference between the client-server and peer-to-peer network models?

Only in the client-server model can file transfers occur.

Every device in a peer-to-peer network can function as a client or a server.

A peer-to-peer network transfers data faster than a transfer using a client-server network.

A data transfer that uses a device serving in a client role requires that a dedicated server be present.

Which networking model is being used when an author uploads one chapter document to a file server of a book publisher?

Peer-to-peer

Master-slave

Client/server

Point-to-point

What network service resolves the URL entered on a PC to the IP address of the destination server?

DNS

DHCP

FTP

SNMP

A network engineer is analyzing reports from a recently performed network baseline. Which situation would depict a possible latency issue?

A change in the bandwidth according to the show interfaces output

A next-hop timeout from a traceroute

An increase in host-to-host ping response times

A change in the amount of RAM according to the show version output

Which firewall feature is used to ensure that packets coming into a network are legitimate responses to requests initiated from internal hosts?

Stateful packet inspection

URL filtering

Application filtering

Packet filtering

Fill in the blank. During data communications, a host may need to send a single message to a specific group of destination hosts simultaneously. This message is in the form of a ......... message

Multicast

Het antwoord is godverdomme multicast

A medium-sized business is researching available options for connecting to the Internet. The company is looking for a high speed option with dedicated, symmetric access. Which connection type should the company choose?

DSL

Dialup

Satellite

Leased line

Cable modem

What is the purpose of having a converged network?

To provide high speed connectivity to all end devices

To make sure that all types of data packets will be treated equally

To achieve fault tolerance and high availability of data network infrastructure devices

To reduce the cost of deploying and maintaining the communication infrastructure

What characteristic of a network enables it to quickly grow to support new users and applications without impacting the performance of the service being delivered to existing users?

Reliability

Scalability

Quality of service

Accessibility

Which connection provides a secure CLI session with encryption to a Cisco switch?

A console connection

An AUX connection

A Telnet connection

An SSH connection

The command is being entered from the wrong mode of operation.

The command syntax is wrong.

The subnet mask information is incorrect.

The interface is shutdown and must be enabled before the switch will accept the IP address.

After several configuration changes are made to a router, the copy running-configuration startup-configuration command is issued. Where will the changes be stored?

Flash

ROM

NVRAM

RAM

The configuration register

A TFTP server

Refer to the exhibit. From global configuration mode, an administrator is attempting to create a message-of-the-day banner by using the command banner motd V Authorized access only! Violators will be prosecuted! V When users log in using Telnet, the banner does not appear correctly. What is the problem?

The banner message is too long.

The delimiting character appears in the banner message.

The symbol “!” signals the end of a banner message.

Message-of-the-day banners will only appear when a user logs in through the console port.

What are three characteristics of an SVI? (Choose three.)

It is designed as a security protocol to protect switch ports.

It is not associated with any physical interface on a switch.

It is a special interface that allows connectivity by different types of media.

It is required to allow connectivity by any device at any location.

It provides a means to remotely manage a switch.

It is associated with VLAN1 by default.

A technician configures a switch with these commands:SwitchA(config)# interface vlan 1 SwitchA(config-if)# ip address 192.168.1.1 255.255.255.0 SwitchA(config-if)# no shutdownWhat is the technician configuring?

Telnet access

SVI

Password encryption

Physical switchport access

In computer communication, what is the purpose of message encoding?

To convert information to the appropriate form for transmission

To interpret information

To break large messages into smaller frames

To negotiate correct timing for successful communication

What protocol is responsible for controlling the size of segments and the rate at which segments are exchanged between a web client and a web server?

TCP

HTTP

Ethernet

What is the process of dividing a data stream into smaller pieces before transmission?

Segmentation

Encapsulation

Encoding

Flow control

When IPv4 addressing is manually configured on a web server, which property of the IPv4 configuration identifies the network and host portion for an IPv4 address?

DNS server address

Subnet mask

Default gateway

DHCP server address

Presentation layer

Network layer

Physical layer

Data link layer

A network engineer is measuring the transfer of bits across the company backbone for a mission critical database application. The engineer notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)

The amount of traffic that is currently crossing the network

The sophistication of the encapsulation method applied to the data

The type of traffic that is crossing the network

The latency that is created by the number of network devices that the data is crossing

The bandwidth of the WAN connection to the Internet

The reliability of the gigabit Ethernet infrastructure of the backbone

What is a characteristic of the LLC sublayer?

It provides the logical addressing required that identifies the device.

It provides delimitation of data according to the physical signaling requirements of the medium.

It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.

It defines software processes that provide services to the physical layer.

Which type of UTP cable is used to connect a PC to a switch port?

Console

Rollover

Crossover

Straight-through

What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)

Error correction through a collision detection method

Session control using port numbers

Data link layer addressing

Placement and removal of frames from the media

Detection of errors through CRC calculations

Delimiting groups of bits into frames

Conversion of bits into data signals

What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?

It will discard the frame.

It will forward the frame to the next host.

It will remove the frame from the media.

It will strip off the data-link frame to check the destination IP address.

What are two actions performed by a Cisco switch? (Choose two.)

Building a routing table that is based on the first IP address in the frame header

Using the source MAC addresses of frames to build and maintain a MAC address table

Forwarding frames with unknown destination IP addresses to the default gateway

Utilizing the MAC address table to forward frames via the destination MAC address

Examining the destination MAC address to add new entries to the MAC address table

What are two examples of the cut-through switching method? (Choose two.)

Store-and-forward switching

Fast-forward switching

CRC switching

Fragment-free switching

QOS switching

What information is added during encapsulation at OSI Layer 3?

Source and destination MAC

Source and destination application protocol

Source and destination port number

Source and destination IP address

Refer to the exhibit. The network administrator for a small advertising company has chosen to use the 192.168.5.96/27 network for internal LAN addressing. As shown in the exhibit, a static IP address is assigned to the company web server. However, the web server cannot access the Internet. The administrator verifies that local workstations with IP addresses that are assigned by a DHCP server can access the Internet, and the web server is able to ping local workstations. Which component is incorrectly configured?

Subnet mask

DNS address

Host IP address

Default gateway address

Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?

To identify the broadcast address of the destination network

To identify the host address of the destination host

To identify faulty frames

To identify the network address of the destination network

What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)

10.0.0.0/8

64.100.0.0/14

127.16.0.0/12

172.16.0.0/12

192.31.7.0/24

192.168.0.0/16

Which three addresses are valid public addresses? (Choose three.)

198.133.219.17

192.168.1.245

10.15.250.5

128.107.12.117

192.15.301.240

What type of IPv6 address is FE80::1?

Loopback

Link-local

Multicast

Global unicast

Refer to the exhibit. On the basis of the output, which two statements about network connectivity are correct? (Choose two.)

There is connectivity between this device and the device at 192.168.100.1.

The connectivity between these two hosts allows for videoconferencing calls.

There are 4 hops between this device and the device at 192.168.100.1.

The average transmission time between the two hosts is 2 milliseconds.

This host does not have a default gateway configured.

Which subnet would include the address 192.168.1.96 as a usable host address?

192.168.1.64/26

192.168.1.32/27

192.168.1.32/28

192.168.1.64/29

How many hosts are addressable on a network that has a mask of 255.255.255.248?

254

Which statement is true about variable-length subnet masking?

Each subnet is the same size.

The size of each subnet may be different, depending on requirements.

Subnets may only be subnetted one additional time.

Bits are returned, rather than borrowed, to create additional subnets.

Refer to the exhibit. Consider the IP address of 192.168.10.0/24 that has been assigned to a high school building. The largest network in this building has 100 devices. If 192.168.10.0 is the network number for the largest network, what would be the network number for the next largest network, which has 40 devices?

192.168.10.0

192.168.10.128

192.168.10.192

192.168.10.224

192.168.10.240

In what two situations would UDP be the preferred transport protocol over TCP? (Choose two.)

When applications need to guarantee that a packet arrives intact, in sequence, and unduplicated

When a faster delivery mechanism is needed

When delivery overhead is not an issue

When applications do not need to guarantee delivery of the data

When destination port numbers are dynamic

What important information is added to the TCP/IP transport layer header to ensure communication and connectivity with a remote network device?

Timing and synchronization

Destination and source port numbers

Destination and source physical addresses

Destination and source logical network addresses

What is the TCP mechanism used in congestion avoidance?

Three-way handshake

Socket pair

Two-way handshake

Sliding window

Which three statements characterize UDP? (Choose three.)

UDP provides basic connectionless transport layer functions.

UDP provides connection-oriented, fast transport of data at Layer 3.

UDP relies on application layer protocols for error detection.

UDP is a low overhead protocol that does not provide sequencing or flow control mechanisms.

UDP relies on IP for error detection and recovery.

UDP provides sophisticated flow control mechanisms.

Which two protocols operate at the highest layer of the TCP/IP protocol stack? (Choose two.)

DNS

Ethernet

POP

TCP

UDP

Which two roles can a computer assume in a peer-to-peer network where a file is being shared between two computers? (Choose two.)

Client

Server

Master

Slave

Transient

What is the function of the HTTP GET message?

To request an HTML page from a web server

To send error information from a web server to a web client

To upload content to a web server from a web client

To retrieve client email from an email server using TCP port 110

When planning for network growth, where in the network should packet captures take place to assess network traffic?

On as many different network segments as possible

Only at the edge of the network

Between hosts and the default gateway

Only on the busiest network segment

Refer to the exhibit. An administrator is testing connectivity to a remote device with the IP address 10.1.1.1. What does the output of this command indicate?

Connectivity to the remote device was successful.

A router along the path did not have a route to the destination.

A ping packet is being blocked by a security device along the path.

The connection timed out while waiting for a reply from the remote device.

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