Cisco Quiz
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
What method is used to manage contention-based access on a wireless network?
CSMA/CA
Token passing
Priority ordering
CSMA/CD
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 exit to a different configuration mode
To interrupt the ping process
To allow the user to complete the command
To restart the ping process
Which name is assigned to the transport layer PDU?
Segment
Packet
Frame
Data
Bits
What is an advantage to using a protocol that is defined by an open standard?
A company can monopolize the market.
It encourages competition and promotes choices.
The protocol can only be run on equipment from a specific vendor.
An open standard protocol is not controlled or regulated by standards organizations.
What are two services provided by the OSI network layer? (Choose two.)
Encapsulating PDUs from the transport layer
Performing error detection
Collision detection
Placement of frames on the media
Routing packets toward the destination
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 source port number
The source IP address
The destination port number
The destination IP address
What is a characteristic of the LLC sublayer?
It defines software processes that provide services to the physical layer.
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.
What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)
64.100.0.0/14
192.168.0.0/16
172.16.0.0/12
127.16.0.0/12
10.0.0.0/8
192.31.7.0/24
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?
IP
TCP
Ethernet
HTTP
Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?
Store-and-forward switching
Cut-through switching
Fragment-free switching
Fast-forward switching
Which subnet would include the address 192.168.1.96 as a usable host address?
192.168.1.64/26
192.168.1.64/29
192.168.1.64/29
192.168.1.32/27
What is a benefit of using cloud computing in networking?
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.
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.
End users have the freedom to use personal tools to access information and communicate across a business network.
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 the function of the shell in an OS?
It provides the intrusion protection services for the device.
It provides dedicated firewall services.
It interfaces between the users and the kernel.
It interacts with the device hardware.
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 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.
The command is being entered from the wrong mode of operation.
What addresses are mapped by ARP?
Destination IPv4 address to the destination host name
Destination MAC address to a destination IPv4 address
Destination MAC address to the source IPv4 address
Destination IPv4 address to the source MAC address
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 sophistication of the encapsulation method applied to the data
The amount of traffic that is currently crossing the network
The bandwidth of the WAN connection to the Internet
The latency that is created by the number of network devices that the data is crossing
The reliability of the gigabit Ethernet infrastructure of the backbone
The type of traffic that is crossing the network
What are two benefits of using a layered network model? (Choose two.)
It prevents designers from creating their own model.
It assists in protocol design.
It ensures a device at one layer can function at the next higher layer.
It speeds up packet delivery.
It prevents technology in one layer from affecting other layers.
Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.)
Network
Physical
Session
Transport
Data link
Which statement is true about variable-length subnet masking?
Each subnet is the same size.
Subnets may only be subnetted one additional time.
Bits are returned, rather than borrowed, to create additional subnets.
The size of each subnet may be different, depending on requirements.
Which range of link-local addresses can be assigned to an IPv6-enabled interface?
FEC0::/10
FDEE::/7
FE80::/10
FF00::/8
On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?
VLAN 1
Vty 0
Console 0
FastEthernet0/1
Which domain name would be an example of a top-level domain?
Cisco.com
Www.cisco.com
.com
Root.cisco.com
How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?
254
190
192
62
64
What purpose does NAT64 serve in IPv6?
It translates private IPv6 addresses into public IPv6 addresses.
It converts IPv6 packets into IPv4 packets.
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
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?
Secretin
Letmein
Lineconin
Linevtyin
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 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 student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header.
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.
What is the dotted decimal representation of the IPv4 address 11001011.00000000.01110001.11010011?
209.165.201.223
192.0.2.199
203.0.113.211
209.165.201.223
What is a characteristic of UTP cabling?
Immunity to electrical hazards
Woven copper braid or metallic foil
Cladding
Cancellation
. A network technician suspects that a particular network connection between two Cisco switches is having a duplex mismatch. Which command would the technician use to see the Layer 1 and Layer 2 details of a switch port?
Show mac-address-table
Show ip interface brief
Show running-config
Show interfaces
What is the most compressed representation of the IPv6 address 2001:0000:0000:abcd:0000:0000:0000:0001?
2001:0:abcd::1
2001::abcd::1
2001:0000:abcd::1
2001:0:0:abcd::1
–ª 2001::abcd:0:1
What are two functions of NVRAM? (Choose two.)
To store the startup configuration file
To store the routing table
To retain contents when power is removed
To contain the running configuration file
To store the ARP table
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?
AA:AA:AA:AA:AA:AA
BB:BB:BB:BB:BB:BB
172.168.10.65
CC:CC:CC:CC:CC:CC
172.168.10.99
DD:DD:DD:DD:DD:DD
When applied to a router, which command would help mitigate bruteforce password attacks against the router?
Service password-encryption
Exec-timeout 30
Banner motd $Max failed logins = 5$
Login block-for 60 attempts 5 within 60
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?
255.255.255.224
255.255.255.128
255.255.255.0
255.255.255.240
Which two tasks are functions of the presentation layer? (Choose two.)
Session control
Authentication
Compression
Encryption
Addressing
What is a characteristic of a fault tolerant network?
A network that supports a mechanism for managing congestion and ensuring reliable delivery of content to all users
A network that protects confidential information from unauthorized access
A network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failure
A network that can expand quickly to support new users and applications without impacting the performance of the service delivered to existing users
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 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.
The address lease is automatically renewed until the PC is returned.
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
Point-to-point
Hub and spoke
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 Cisco234.
The administrator will be required to enter Cisco123.
The administrator will be required to enter Cisco789.
The administrator will be presented with the R1> prompt.
What are three characteristics of multicast transmission? (Choose three.)
Routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255.
A single packet can be sent to a group of hosts.
Computers use multicast transmission to request IPv4 addresses.
Multicast messages map lower layer addresses to upper layer addresses.
Multicast transmission can be used by routers to exchange routing information.
Where are Cisco IOS debug output messages sent by default?
Memory buffers
Console line
Syslog server
Vty lines
A wireless host needs to request an IP address. What protocol would be used to process the request?
FTP
HTTP
DHCP
ICMP
SNMP
Which connection provides a secure CLI session with encryption to a Cisco switch?
An SSH connection
An AUX connection
A console connection
A Telnet connection
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 forward the frame to the next host.
It will discard the frame
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 ways that TCP uses the sequence numbers in a segment? (Choose two.)
To determine if the packet changed during transit
To identify missing segments at the destination
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 reassemble the segments at the remote location
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?
Network Layer
Physical Layer
Data Link Layer
Presentation Layer
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?
Netstat
Tracert
Nslookup
Netstat
What is a key characteristic of the peer-to-peer networking model?
Wireless networking
Social networking without the Internet
Resource sharing without a dedicated server
Network printing using a print server
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