CCNA Final Exam
CCNA Final Exam Quiz
Prepare yourself for the CCNA certification with our comprehensive quiz designed to test your networking knowledge. This quiz includes a variety of challenging questions covering diverse topics related to Cisco Certified Network Associate.
Here's what you can expect:
- 89 detailed questions
- Multiple choice and checkbox questions
- Immediate scoring feedback
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 $Max failed logins = 5$
Login block-for 60 attempts 5 within 60
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
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
IP
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
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
He 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.
He 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
62
30
16
32
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 What single subnet mask would be appropriate to use for the three subnetworks?
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 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
255.255.255.128
255.255.255.192
255.255.255.224
255.255.255.240
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
IP
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
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 Multicast message.
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
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
IP
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
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
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
Which type of UTP cable is used to connect a PC to a switch port?
Console
Rollover
Crossover
Straight-through
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 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
64.104.78.227
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?
2
6
8
14
16
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
IP
POP
TCP
TCP
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
Master
Server
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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