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Cisco Networking Quiz

Test your knowledge of Cisco networking concepts with our comprehensive quiz! Designed for both beginners and seasoned professionals, this quiz covers a wide range of topics related to networking protocols, hardware, and configurations.

Get ready to challenge yourself with:

59 detailed questions
Multiple choice and checkbox formats
Instant feedback on your answers

59 Questions15 MinutesCreated by ConfiguringCloud47

Users report that the network access is slow. After questioning the employees, the network administrator learned that one employee downloaded a third-party scanning program for the printer. What type of malware might be introduced that causes slow performance of the network?

Virus

Worm

Phishing

Spam

A user is executing a tracert to a remote device. At what point would a router, which is in the path to the destination device, stop forwarding the packet?

When the router receives an ICMP Time Exceeded message

When the RTT value reaches zero

When the host responds with an ICMP Echo Reply message

When the value in the TTL field reaches zero

When the values of both the Echo Request and Echo Reply messages reach zero

A network technician is researching the use of fiber optic cabling in a new technology center. Which two issues should be considered before implementing fiber optic media? (Choose two.)

Fiber optic cabling requires different termination and splicing expertise from what copper cabling requires.

Fiber optic cabling requires specific grounding to be immune to EMI.

Fiber optic cabling is susceptible to loss of signal due to RFI.

Fiber optic cable is able to withstand rough handling.

Fiber optic provides higher data capacity but is more expensive than copper cabling.

Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet?

Header Length

Differentiated Services

Time-to-Live

Fragment Offset

A user is complaining that an external web page is taking longer than normal to load.The web page does eventually load on the user machine. Which tool should the technician use with administrator privileges in order to locate where the issue is in the network?

Ping

Nslookup

Tracert

Ipconfig /displaydns

What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.)

IP addresses

Interface descriptions

MAC addresses

Next-hop addresses

Layer 1 statuses

Speed and duplex settings

Data is being sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in this situation? (Choose three.)

The source port field identifies the running application or service that will handle data returning to the PC.

The TCP process running on the PC randomly selects the destination port when establishing a session with the server.

UDP segments are encapsulated within IP packets for transport across the network.

The UDP destination port number identifies the application or service on the server which will handle the data.

TCP is the preferred protocol when a function requires lower network overhead.

The TCP source port number identifies the sending host on the network.

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.

A user sends an HTTP request to a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination?

The network domain of the destination host

The IP address of the default gateway

The MAC address of the destination host

The MAC address of the default gateway

Why would a Layer 2 switch need an IP address?

To enable the switch to send broadcast frames to attached PCs

To enable the switch to function as a default gateway

To enable the switch to be managed remotely

To enable the switch to receive frames from attached PCs

What characteristic describes a VPN?

Software on a router that filters traffic based on IP addresses or applications

Software that identifies fast-spreading threats

A tunneling protocol that provides remote users with secure access into the network of an organization

A network device that filters access and traffic coming into a network

Which two statements describe features of an IPv4 routing table on a router? (Choose two.)

Directly connected interfaces will have two route source codes in the routing table: C and S .

If there are two or more possible routes to the same destination, the route associated with the higher metric value is included in the routing table.

The netstat -r command can be used to display the routing table of a router.

It stores information about routes derived from the active router interfaces.

If a default static route is configured in the router, an entry will be included in the routing table with source code S .

What are two functions that are provided by the network layer? (Choose two.)

Directing data packets to destination hosts on other networks

Placing data on the network medium

Carrying data between processes that are running on source and destination hosts

Providing dedicated end-to-end connections

Providing end devices with a unique network identifier

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 information does the show startup-config command display?

The IOS image copied into RAM

The bootstrap program in the ROM

The contents of the current running configuration file in the RAM

The contents of the saved configuration file in the NVRAM Explain:

What are three characteristics of the CSMA/CD process? (Choose three.)

The device with the electronic token is the only one that can transmit after a collision.

A device listens and waits until the media is not busy before transmitting.

After detecting a collision, hosts can attempt to resume transmission after a random time delay has expired.

All of the devices on a segment see data that passes on the network medium.

A jam signal indicates that the collision has cleared and the media is not busy.

Devices can be configured with a higher transmission priority.

What is one main characteristic of the data link layer?

It generates the electrical or optical signals that represent the 1 and 0 on the media.

It converts a stream of data bits into a predefined code.

It shields the upper layer protocol from being aware of the physical medium to be used in the communication.

It accepts Layer 3 packets and decides the path by which to forward the packet to a remote network.

Which two statements are correct about MAC and IP addresses during data transmission if NAT is not involved? (Choose two.)

Destination IP addresses in a packet header remain constant along the entire path to a target host.

Destination MAC addresses will never change in a frame that goes across seven routers.

Every time a frame is encapsulated with a new destination MAC address, a new destination IP address is needed.

Destination and source MAC addresses have local significance and change every time a frame goes from one LAN to another.

A packet that has crossed four routers has changed the destination IP address four times.

What is a benefit of using cloud computing in networking?

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

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

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

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 subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted?

255.255.255.0

255.255.255.240

255.255.255.128

255.255.255.192

255.255.255.224

An organization is assigned an IPv6 address block of 2001:db8:0:ca00::/56. How many subnets can be created without using bits in the interface ID space?

256

512

1024

4096

Two pings were issued from a host on a local network. The first ping was issued to the IP address of the default gateway of the host and it failed. The second ping was issued to the IP address of a host outside the local network and it was successful. What is a possible cause for the failed ping?

The default gateway is not operational.

The default gateway device is configured with the wrong IP address.

Security rules are applied to the default gateway device, preventing it from processing ping requests.

The TCP/IP stack on the default gateway is not working properly.

130. A client is using SLAAC to obtain an IPv6 address for its interface. After an address has been generated and applied to the interface, what must the client do before it can begin to use this IPv6 address?

It must send a DHCPv6 INFORMATION-REQUEST message to request the address of the DNS server.

It must send a DHCPv6 REQUEST message to the DHCPv6 server to request permission to use this address.

It must send an ICMPv6 Router Solicitation message to determine what default gateway it should use.

It must send an ICMPv6 Neighbor Solicitation message to ensure that the address is not already in use on the network.

What two ICMPv6 message types must be permitted through IPv6 access control lists to allow resolution of Layer 3 addresses to Layer 2 MAC addresses? (Choose two.)

Neighbor solicitations

Echo requests

Neighbor advertisements

Echo replies

Router solicitations

Router advertisements

Which wireless technology has low-power and low-data rate requirements making it popular in IoT environments?

Bluetooth

Zigbee

WiMAX

Wi-Fi

What service is provided by DHCP?

An application that allows real-time chatting among remote users.

Allows remote access to network devices and servers.

Dynamically assigns IP addresses to end and intermediary devices.

Uses encryption to provide secure remote access to network devices and servers.

What characteristic describes an IPS?

A tunneling protocol that provides remote users with secure access into the network of an organization

A network device that filters access and traffic coming into a network

Software that identifies fast-spreading threats

Software on a router that filters traffic based on IP addresses or applications

A client packet is received by a server. The packet has a destination port number of 22. What service is the client requesting?

SSH

SMB/CIFS

HTTPS

SLP

What technique is used with UTP cable to help protect against signal interference from crosstalk?

Wrapping a foil shield around the wire pairs

Twisting the wires together into pairs

Terminating the cable with special grounded connectors

Encasing the cables within a flexible plastic sheath

A network administrator is adding a new LAN to a branch office. The new LAN must support 10 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.192

255.255.255.248

255.255.255.224

255.255.255.240

What attribute of a NIC would place it at the data link layer of the OSI model?

Attached Ethernet cable

IP address

MAC address

RJ-45 port

TCP/IP protocol stack

A client packet is received by a server. The packet has a destination port number of 21. What service is the client requesting?

FTP

LDAP

SLP

SNMP

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

A client packet is received by a server. The packet has a destination port number of 143. What service is the client requesting?

IMAP

FTP

SSH

Telnet

What are three commonly followed standards for constructing and installing cabling? (Choose three.)

Cost per meter (foot)

Cable lengths

Connector color

Pinouts

Connector types

Tensile strength of plastic insulator

A network administrator is adding a new LAN to a branch office. The new LAN must support 200 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.240

255.255.255.0

255.255.255.248

255.255.255.224

What characteristic describes identity theft?

The use of stolen credentials to access private data

Software on a router that filters traffic based on IP addresses or applications

Software that identifies fast-spreading threats

A tunneling protocol that provides remote users with secure access into the network of an organization

Which two statements are correct in a comparison of IPv4 and IPv6 packet headers? (Choose two.)

The Source Address field name from IPv4 is kept in IPv6.

The Version field from IPv4 is not kept in IPv6.

The Destination Address field is new in IPv6.

The Header Checksum field name from IPv4 is kept in IPv6.

The Time-to-Live field from IPv4 has been replaced by the Hop Limit field in IPv6.

How does the service password-encryption command enhance password security on Cisco routers and switches?

It requires encrypted passwords to be used when connecting remotely to a router or switch with Telnet.

It encrypts passwords that are stored in router or switch configuration files.

It requires that a user type encrypted passwords to gain console access to a router or switch.

It encrypts passwords as they are sent across the network.

Users are reporting longer delays in authentication and in accessing network resources during certain time periods of the week. What kind of information should network engineers check to find out if this situation is part of a normal network behavior?

Syslog records and messages

The network performance baseline

Debug output and packet captures

Network configuration files

What is the subnet ID associated with the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64?

2001:DA48::/64

2001:DA48:FC5::A4:/64

2001:DA48:FC5:A4::/64

2001::/64

What are two primary responsibilities of the Ethernet MAC sublayer? (Choose two.)

Error detection

Frame delimiting

Accessing the media

Data encapsulation

Logical addressing

When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the switch revert when the error threshold is reached?

Cut-through

Store-and-forward

Fast-forward

Fragment-free

What characteristic describes adware?

A network device that filters access and traffic coming into a network

Software that is installed on a user device and collects information about the user

The use of stolen credentials to access private data

An attack that slows or crashes a device or network service

What service is provided by BOOTP?

Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.

Allows for data transfers between a client and a file server.

Legacy application that enables a diskless workstation to discover its own IP address and find a BOOTP server on the network.

A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.

What would be the interface ID of an IPv6 enabled interface with a MAC address of 1C-6F-65-C2-BD-F8 when the interface ID is generated by using the EUI-64 process?

0C6F:65FF:FEC2:BDF8

1E6F:65FF:FEC2:BDF8

C16F:65FF:FEC2:BDF8

106F:65FF:FEC2:BDF8

Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.)

NAT adds authentication capability to IPv4.

NAT introduces problems for some applications that require end-to-end connectivity.

NAT will impact negatively on switch performance.

NAT provides a solution to slow down the IPv4 address depletion.

NAT improves packet handling.

NAT causes routing tables to include more information.

A user is attempting to access http://www.cisco.com/ without success. Which two configuration values must be set on the host to allow this access? (Choose two.)

DNS server

Source port number

HTTP server

Source MAC address

Default gateway

What service is provided by FTP?

A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.

An application that allows real-time chatting among remote users.

Allows for data transfers between a client and a file server.

Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.

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

FEC0::/10

FDEE::/7

FE80::/10

FF00::/8

Which switching method drops frames that fail the FCS check?

Store-and-forward switching

Borderless switching

Ingress port buffering

Cut-through switching

What characteristic describes spyware?

A network device that filters access and traffic coming into a network

Software that is installed on a user device and collects information about the user

An attack that slows or crashes a device or network service

The use of stolen credentials to access private data

What is the purpose of the TCP sliding window?

To ensure that segments arrive in order at the destination

To end communication when data transmission is complete

To inform a source to retransmit data from a specific point forward

To request that a source decrease the rate at which it transmits data

What is a function of the data link layer?

Provides the formatting of data

Provides end-to-end delivery of data between hosts

Provides delivery of data between two applications

Provides for the exchange of frames over a common local media

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

Token passing

CSMA/CA

Priority ordering

CSMA/CD

A new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way a network administrator could test whether the banner is properly configured?

Enter CTRL-Z at the privileged mode prompt.

Exit global configuration mode.

Power cycle the device.

Reboot the device

Exit privileged EXEC mode and press Enter.

A network administrator is designing the layout of a new wireless network. Which three areas of concern should be accounted for when building a wireless network? (Choose three.)

Extensive cabling

Mobility options

Packet collision

Interference

Security

Coverage area

What are the three parts of an IPv6 global unicast address? (Choose three.)

Subnet ID

Subnet mask

Broadcast address

Global routing prefix

Interface ID

An IPv6 enabled device sends a data packet with the destination address of FF02::2. What is the target of this packet?

All IPv6 enabled devices on the local link

All IPv6 DHCP servers

All IPv6 enabled devices across the network

All IPv6 configured routers on the local link

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