Test your basic knowledge |

CCNA Hard

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. A new switch is installed in the Certkiller network. This switch is to be configured so that VLAN information will be automatically distributed to all the other Cisco Catalyst switches in the network. Which of the conditions below have to be met in o
Fiber optic cable.
The switch that will share the VLAN information must be in the VTP Server mode. -The switches must be in the same VTP domain. - The switches must be configured to use the same STP version. and The switches must be connected over VLAN trunks.
Hosts use a logical bus topology
Information about a route should never be sent back in the direction from which the original update came.

2. CDP is running between two CK devices. What information is supplied by CDP?
A switch is a multiport bridge and Bridges and switches learn Mac addresses by examining the source MAC address of each frame received.
Source Port - Acknowledgment Number - and Window
It is the sum of the costs based on bandwidth
Device Identifiers - Capabilities list - Platform

3. Which two statements describe the operation of the CSMA/CD access method - which is in use on the Certkiller network?
The network layer
In a CSMA/CD collision domain - stations must wait until the media is not in use before transmitting. and After a collision - all stations run a random backoff algorithm. When the backoff delay period has expired - all stations have equal priority to
Source Port - Acknowledgment Number - and Window
Switches increase the number of collision domains in the network.

4. Which of following VLAN frame encapsulation types are configurable on a Cisco switch?
Physical Layer and Datalink Layer
Decrease the window size.
802.1Q and ISL
UDP will pass the information in the datagrams up to the next OSI layer in the order that they arrive.

5. What kind of cable should be used to establish a trunked line between two Catalyst switches?
Source Port - Acknowledgment Number - and Window
Too many hosts in a broadcast domain - Broadcast storms and Low bandwidth
VTP
A cross-over cable

6. You are the administrator of the Certkiller LAN and you have been reviewing error logs of networking devices and notice a large number of errors associated with several MAC addresses. You suspect that some of the errors are being generated by the rou
They can provide hosts with information about network problems. and They are encapsulated within IP datagrams.
A CSU/DSU terminates a digital local loop - A modem terminates an analog local loop - A router is commonly considered a DTE device.
Show arp and Show interface
Increased latency and Filtering of all frame errors

7. What is the purpose of the spanning-tree algorithm in a switched LAN?
TCP
A hub and A repeater.
To prevent switching loops in networks with redundant switched paths.
In an improperly implemented redundant topology

8. Which two of the following values does STP take into consideration when it elects the root bridge?
The Bridgeg ID and The bridge priority
Increased latency and Filtering of all frame errors
Packet switching - Packet filtering and Internetwork communication.
802.1Q and ISL

9. The Certkiller network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test?
802.1Q and ISL
ARP and ICMP
Physical Layer and Datalink Layer
The interfaces must be configured for NAT.

10. Which of the following services use TCP?
Auto - On - and Desirable
SMTP FTP and HTTP
STP
TCP

11. Which of the protocols below use TCP at the transport layer?
An additional broadcast domain will be created.
Switches increase the number of collision domains in the network.
SMTP - FTP - HTTP - and HTTPS
The port is experiencing errors

12. Two stations on the Certkiller LAN transmit at the same time - resulting in a collision. What happens when a collision occurs on the network?
A jam signal informs all devices that a collision occurred. - The devices that are involved in the collision stops transmitting for a short time. and The collision invokes a random back-off algorithm.
The interfaces must be configured for NAT.
Source Port - Acknowledgment Number - and Window
It will prevent segment 1's broadcasts from getting to segment 2.

13. When you compare the differences between half-duplex and full-duplex Ethernet - which of the following characteristics are exclusive to half-duplex?
All switch and bridge ports are in either the forwarding or blocking state.
Half-duplex Ethernet operates in a shared collision domain. and Half-duplex Ethernet has lower effective throughput.
ARP and ICMP
CertK Switch(config)# ip default-gateway 192.168.1.115

14. What is the IEEE standard associated with Gigabit Ethernet?
802.3ab and 802.3z
The transport layer divides a data stream into segments and adds reliability and flow control information. Packets are created when the network layer adds Layer 3 addresses and control information to a segment.
Source Port - Acknowledgment Number - and Window
MAC Address and Bridge Priority

15. You are logged into a router and wish to view the layer 3 information about your neighboring Cisco routers. What IOS command gives layer 3 information for of the directly connected router interfaces?
Show cdp neighbor detail
Layer 4
Configure the switch so that it has a lower priority than other switches in the network.
This is an Ethernet port operating at half duplex

16. You have set up an Internet based FTP server - where people can upload and download files. In terms of the OSI model - What is the highest layer used during the FTP sessions.
The switch that will share the VLAN information must be in the VTP Server mode. -The switches must be in the same VTP domain. - The switches must be configured to use the same STP version. and The switches must be connected over VLAN trunks.
They can provide hosts with information about network problems. and They are encapsulated within IP datagrams.
Application
The network layer

17. CK1 is a switch in the Certkiller network. Why will CK1 never learn the broadcast address?
Network
A broadcast address will never be the source address of a frame
The network layer
802.1Q and ISL

18. Which of the following are spanning tree port states?
The switch must be reachable through a port connected to its management VLAN. and The switch must be configured with an IP address - subnet mask - and default gateway.
Learning - Listening - and Forwarding
Show cdp neighbor detail
802.1Q and ISL

19. As a Certkiller trainee you are required to set the default gateway on a Cisco switch to the IP address of 192.168.1.115. Which IOS command should you use?
The switch must be reachable through a port connected to its management VLAN. and The switch must be configured with an IP address - subnet mask - and default gateway.
All switch and bridge ports are in either the forwarding or blocking state.
To allow remote management of the switch.
CertK Switch(config)# ip default-gateway 192.168.1.115

20. In a switched LAN network - What is the Spanning-Tree algorithm used for?
To obtain the IP address of a connected device in order to telnet to the device - To verify Layer 2 connectivity between two devices when Layer 3 fails.
Half-duplex Ethernet uses a loopback circuit to detect collisions. and Full-duplex Ethernet makes use of two pairs of wires for data.
It is used to prevent switching loops in networks with redundant switched routes.
Path selections and Packet switching.

21. Which fields are included in the TCP header?
Learning - Listening - and Forwarding
Source Port - Acknowledgment Number - and Window
The host network card and the switch port must be capable of operating in full-duplex mode. - There are no collisions in full-duplex mode. and A dedicated switch port is required for each full-duplex node.
The switch will forward the frame to a specific port

22. Why is full-duplex Ethernet superior to its single-duplex counterpart?
VLAN and Swtich
It operates without collisions and It provides faster data transfer
Buffering - Cut-through - and Congestion avoidance
It is the sum of the costs based on bandwidth

23. Cisco is the leader in the router market space. What basic functions do their routers perform in a network?
It is the sum of the costs based on bandwidth
Physical Layer and Datalink Layer
Hosts use a logical bus topology
Path selections and Packet switching.

24. A Certkiller Ethernet switch receives a unicast frame with a destination MAC that IS listed in the switch table. What will this switch do with the frame?
An electrical pulse indicates that the collision has cleared.
This is an Ethernet port operating at half duplex
Information about a route should never be sent back in the direction from which the original update came.
The switch will forward the frame to a specific port

25. The LAN needs are expanding at the CK corporate office - which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the CK network. Which of the following are layer 1 devices that you can use?
Layer 3
802.1Q and ISL
A hub and A repeater.
CertK Switch(config)# ip default-gateway 192.168.1.115

26. Which layer of the OSI reference model is responsible for ensuring reliable end to end delivery of data?
Transport
The network layer
It is the sum of the costs based on bandwidth
MAC Address and Bridge Priority

27. Which of the following are true of Ethernet technology?
Allowing simultaneous frame transmissions and filtering frames based on MAC addresses
Auto - Desirable - and On
Hosts use a logical bus topology
Congestion avoidance - Windowing and Buffering

28. Both bridges are switches are being used throughout the CK LAN. Which of the following statements are true regarding bridges and switches in this network?
Increased latency and Filtering of all frame errors
Switches usually have a higher number of ports then most bridges - Both bridges and switches forward Layer 2 broadcasts and Both bridges and switches make forwarding decisions based on Layer 2 addresses.
Half-duplex Ethernet uses a loopback circuit to detect collisions. and Full-duplex Ethernet makes use of two pairs of wires for data.
STP

29. While troubleshooting an issue in the Certkiller LAN you notice that a network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement - What is known about the network interface port?
VTP
This is an Ethernet port operating at half duplex
Application
A hub and A repeater.

30. A host computer has been correctly configured with a static IP address - but the default gateway is incorrectly set. Which layer of the OSI model will be first effected by this configuration error?
TCP
A hub and A repeater.
Port security
Layer 3

31. Which IOS user EXEC command will allow a network technician to determine which router in the path to an unreachable network host should be examined more closely for the cause of the network failure?
In a CSMA/CD collision domain - stations must wait until the media is not in use before transmitting. and After a collision - all stations run a random backoff algorithm. When the backoff delay period has expired - all stations have equal priority to
UDP will pass the information in the datagrams up to the next OSI layer in the order that they arrive.
Certkiller B > trace
A broadcast address will never be the source address of a frame

32. Both the switches and hubs are being utilized within the CK network. Which of the following is true regarding the use of switches and hubs for the network connectivity in this network?
Certkiller B > trace
Switches increase the number of collision domains in the network.
Physical Layer and Datalink Layer
HTTPS

33. Network equipment supporting the use of flow control mechanisms has been recently installed in the CK network. What is the purpose of flow control in a data network?
An electrical pulse indicates that the collision has cleared.
Auto - Desirable - and On
It provides a mechanism for the receiver to control the transmission speed - You have just installed a new web server on the Certkiller network. You are required to ensure that the web server is accessible from the Internet. The network uses private
Half-duplex Ethernet operates in a shared collision domain. and Half-duplex Ethernet has lower effective throughput.

34. Certkiller users have noticed extremely slow network performance - intermittent connectivity - and connection losses. After entering the 'show interfaces' command - you notice that the Ethernet interface is configured as 100 Mbps full-duplex and that
Application
It encourages industry standardization by defining what functions occur at each layer of the model and It divides the network communication process into smaller and simpler components; thus aiding component development - design and troubleshooting
Packet switching - Packet filtering and Internetwork communication.
Duplex mismatch

35. Which Layer 4 protocol is used for a Telnet connections between two CK routers?
TCP
Auto - On - and Desirable
Show arp and Show interface
A switch is a multiport bridge and Bridges and switches learn Mac addresses by examining the source MAC address of each frame received.

36. Which of the following devices can the Certkiller network administrator use to segment the LAN?
Switches - Bridges - and Routers
Data link
Half-duplex Ethernet operates in a shared collision domain. and Half-duplex Ethernet has lower effective throughput.
This is an Ethernet port operating at half duplex

37. The Certkiller corporate LAN consists of one large flat network. You decide to segment this LAN into two separate networks with a router. What will be the affect of this change?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

38. As a CCNA candidate - you will be expected to know the OSI model very well. Which of the following are associated with the application layer (layer 7) of the OSI model?
Certkiller B > trace
Fiber optic cable.
Physical Layer and Datalink Layer
Telnet and FTP

39. You are experiencing intermittent issues relating to congestion within the Certkiller network. What are the possible causes of congestion on this LAN?
A broadcast domain with too many hosts - Broadcast storms - and Low bandwidth
802.1Q and ISL
Application
CertK Switch(config)# ip default-gateway 192.168.1.115

40. At which OSI layer is a logical path created between two host systems named CK1 and CK2 on the Certkiller LAN?
A cross-over cable
To prevent switching loops in networks with redundant switched paths.
Network
TCP

41. You unsuccessfully try to ping the Internet from the PC host on the LAN. During the troubleshooting process - you enter the 'show ip nat translations' command but the output is blank. What is the most likely cause of the problem?
100 meters
The interfaces must be configured for NAT.
Show cdp neighbor detail
Switches increase the number of collision domains in the network.

42. You download a file from an FTP site on the Internet. What is the highest layer in the OSI model used in this FTP operations?
Layer 4
An electrical pulse indicates that the collision has cleared.
802.3ab and 802.3z
Application

43. Although TCP segments are similar to UDP segments - TCP packets contains some additional fields. Which of the following are found in a TCP header - but not in a UDP header?
It encourages industry standardization by defining what functions occur at each layer of the model and It divides the network communication process into smaller and simpler components; thus aiding component development - design and troubleshooting
Sequence number - Window size - and Acknowledgment number
Switches - Bridges - and Routers
STP

44. A Certkiller switch is configured with all ports assigned to VLAN 2. In addition - all ports are configured as full-duplex FastEthernet. What is the effect of adding switch ports to a new VLAN on this switch?
Show cdp neighbor detail
Application
An additional broadcast domain will be created.
HTTPS - SMTP - and TFTP

45. The corporate head office of Certkiller has a teleconferencing system that uses VOIP (voice over IP) technology. This system uses UDP as the transport for the data transmissions. If these UDP datagrams arrive at their destination out of sequence - wh
Switches increase the number of collision domains in the network.
In a CSMA/CD collision domain - stations must wait until the media is not in use before transmitting. and After a collision - all stations run a random backoff algorithm. When the backoff delay period has expired - all stations have equal priority to
Buffering - Cut-through - and Congestion avoidance
UDP will pass the information in the datagrams up to the next OSI layer in the order that they arrive.

46. By default - which of the following factors determines the spanning-tree path cost?
It is the sum of the costs based on bandwidth
Fiber optic cable.
Decrease the window size.
Configure the switch so that it has a lower priority than other switches in the network.

47. The Certkiller network administrator wants to use a router named CK1 to segment the local network. What are some of the advantages of using CK1 to segment the network? (Choose two)
VTP will allow switches to share VLAN configuration information
Fiber optic cable.
Switches - Bridges - and Routers
Filtering can occur based on Layer 3 information and Broadcasts are not forwarded across the router

48. Which of the following commands would be applied to a WAN interface - but not on LAN Interface?
To prevent switching loops in networks with redundant switched paths.
Data link
Increased latency and Filtering of all frame errors
Encapsulations PPP and authentication CHAP

49. The system LED is amber on a new Certkiller Catalyst 2950 series switch. What does this indicate?
Too many hosts in a broadcast domain - Broadcast storms and Low bandwidth
The system is malfunctioning.
MAC Address and Bridge Priority
Increased latency and Filtering of all frame errors

50. The Certkiller network administrator needs to a switch named CK1 to become the root bridge for a redundant path switched network. What can be done to ensure that CK1 will always assume the role as the root bridge?
The host network card and the switch port must be capable of operating in full-duplex mode. - There are no collisions in full-duplex mode. and A dedicated switch port is required for each full-duplex node.
Fiber optic cable.
Configure the switch so that it has lower priority than other switches in the network
Too many hosts in a broadcast domain - Broadcast storms and Low bandwidth