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Test your basic knowledge |
CCNA Hard
Start Test
Study First
Subjects
:
cisco
,
it-skills
,
ccna
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. Certkiller has implemented the use of the Virtual Trunking Protocol (VTP). Which statement below accurately describes a benefit of doing this?
VTP
Layer 3
Full-duplex Ethernet can provide higher throughput than can half-duplex Ethernet of the same bandwidth
VTP will allow switches to share VLAN configuration information
2. What kind of cable should be used to establish a trunked line between two Catalyst switches?
Data link
Network
A cross-over cable
VTP
3. 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?
Application
A hub and A repeater.
VLAN and Swtich
A cross-over cable
4. On a half-duplex Ethernet LAN - two hosts attempt to send data simultaneously - resulting in a collision. Following this collision - what will the hosts do?
An electrical pulse indicates that the collision has cleared.
A broadcast domain with too many hosts - Broadcast storms - and Low bandwidth
Allowing simultaneous frame transmissions and filtering frames based on MAC addresses
A broadcast address will never be the source address of a frame
5. Which of the following commands would be applied to a WAN interface - but not on LAN Interface?
Encapsulations PPP and authentication CHAP
VTP will allow switches to share VLAN configuration information
Congestion avoidance - Windowing and Buffering
Application
6. At which OSI layer is a logical path created between two host systems named CK1 and CK2 on the Certkiller LAN?
Application
An additional broadcast domain will be created.
Network
Switches increase the number of collision domains in the network.
7. Which of the following devices can the Certkiller network administrator use to segment the LAN?
Data link
Packet switching - Packet filtering and Internetwork communication.
Configure the switch so that it has a lower priority than other switches in the network.
Switches - Bridges - and Routers
8. Which of the following correctly describe the various functions and virtues of a router?
Data link
A hub and A repeater.
Packet switching - Packet filtering and Internetwork communication.
Duplex mismatch
9. An administrator would like to configure a switch over a virtual terminal connection from locations outside of the local LAN. Which of the following are required in order for the switch to be configured from a remote location?
Data link
Learning - Listening - and Forwarding
SMTP FTP and HTTP
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.
10. You need to configure two Certkiller switches to exchange VLAN information. Which protocol provides a method of sharing VLAN configuration information between these two switches?
Auto - On - and Desirable
VTP
Certkiller B > trace
HTTPS
11. CDP is running between two CK devices. What information is supplied by CDP?
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
Half-duplex Ethernet operates in a shared collision domain. and Half-duplex Ethernet has lower effective throughput.
Device Identifiers - Capabilities list - Platform
Configure the switch so that it has a lower priority than other switches in the network.
12. You want to influence the root bridge selection within the Certkiller LAN. Which two values are used by spanning tree protocol to elect a root bridge? (Choose two.)
Auto - On - and Desirable
MAC Address and Bridge Priority
VTP will allow switches to share VLAN configuration information
Switches - Bridges - and Routers
13. 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)
Filtering can occur based on Layer 3 information and Broadcasts are not forwarded across the router
Increased latency and Filtering of all frame errors
802.3ab and 802.3z
VTP
14. You want to upgrade the Certkiller LAN so that all ports operate in full duplex mode. Which statement is true about full-duplex Ethernet when comparing to half-duplex Ethernet?
VLAN and Swtich
Path selections and Packet switching.
HTTPS
Full-duplex Ethernet can provide higher throughput than can half-duplex Ethernet of the same bandwidth
15. As a CCNA candidate - you must know the various layers of the OSI model. At which layers of the OSI model do Wide Area Networks operate in?
Serial0/1 is down - line protocol is down
Physical Layer and Datalink Layer
Layer 4
Half-duplex Ethernet operates in a shared collision domain. and Half-duplex Ethernet has lower effective throughput.
16. CK1 is a switch in the Certkiller network. Why will CK1 never learn the broadcast address?
Auto - On - and Desirable
Buffering - Cut-through - and Congestion avoidance
Too many hosts in a broadcast domain - Broadcast storms and Low bandwidth
A broadcast address will never be the source address of a frame
17. Which OSI layer header contains the address of a destination host that is on another network?
This is an Ethernet port operating at half duplex
Configure the switch so that it has lower priority than other switches in the network
Network
The network layer
18. Which three statements are true about the operation of a full-duplex Ethernet network - which is being used in the Certkiller LAN?
Full-duplex Ethernet can provide higher throughout than can half-duplex Ethernet of the same bandwidth
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.
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 network layer
19. Which of the following are types of flow control?
CertK Switch(config)# ip default-gateway 192.168.1.115
Buffering - Cut-through - and Congestion avoidance
MAC Address and Bridge Priority
Hosts use a logical bus topology
20. 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?
Switches increase the number of collision domains in the network.
In an improperly implemented redundant topology
SMTP - FTP - HTTP - and HTTPS
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.
21. A Certkiller technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the sh
Data link
Serial0/1 is down - line protocol is down
Switches - Bridges - and Routers
Full-duplex Ethernet can provide higher throughout than can half-duplex Ethernet of the same bandwidth
22. You need to perform some initial configuration tasks on a new Certkiller switch. What is the purpose of assigning an IP address to a switch?
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.
To allow remote management of the switch.
ARP and ICMP
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.
23. when files are transferred between a host and an FTP server - the data is divided into smaller pieces of transmission. As these pieces arrive at the destination host they must be reassembled to reconstruct the original file. What provides for the rea
Switches - Bridges - and Routers
The sequence number in the TCP header.
The network layer
Layer 4
24. While troubleshooting a network connectivity problem - a Certkiller technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However - when the ping command is issued from the works
Switches increase the number of collision domains in the network.
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
Switches - Bridges - and Routers
The network layer
25. What is the IEEE standard associated with Gigabit Ethernet?
802.3ab and 802.3z
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.
Network
Information about a route should never be sent back in the direction from which the original update came.
26. Which two statements describe the operation of the CSMA/CD access method - which is in use on the Certkiller network?
ARP and ICMP
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
TCP
Certkiller B > trace
27. 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.
Application
Filtering can occur based on Layer 3 information and Broadcasts are not forwarded across the router
Serial0/1 is down - line protocol is down
100 meters
28. Which three of the protocols below belong to the application layer? (Select three answer choices)
Half-duplex Ethernet uses a loopback circuit to detect collisions. and Full-duplex Ethernet makes use of two pairs of wires for data.
STP
HTTPS - SMTP - and TFTP
Show cdp neighbor detail
29. 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
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.
A broadcast address will never be the source address of a frame
Duplex mismatch
Serial0/1 is down - line protocol is down
30. What is the purpose of the spanning-tree algorithm in a switched LAN?
To prevent switching loops in networks with redundant switched paths.
They can provide hosts with information about network problems. and They are encapsulated within IP datagrams.
The network layer
Decrease the window size.
31. Some of the older Certkiller switches store the entire frame before forwarding it to the destination. What are two effects on network performance of configuring a switch to do this?
Port security
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.
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.
Increased latency and Filtering of all frame errors
32. A network administrator wants to control which user hosts can access the network based on their MAC address. What will prevent workstations with unauthorized MAC addresses from connecting to the network through a switch?
Decrease the window size.
Serial0/1 is down - line protocol is down
Port security
Auto - Desirable - and On
33. Which of the following can lead to the contribution of LAN traffic congestion?
Serial0/1 is down - line protocol is down
Too many hosts in a broadcast domain - Broadcast storms and Low bandwidth
Auto - On - and Desirable
Switches increase the number of collision domains in the network.
34. A network administrator needs to force a high-performance switch that is located in the MDF to become the root bridge for a redundant path switched network. What can be done to ensure that this switch assumes the role of the Root Bridge?
This is an Ethernet port operating at half duplex
Configure the switch so that it has a lower priority than other switches in the network.
Switches increase the number of collision domains in the network.
Filtering can occur based on Layer 3 information and Broadcasts are not forwarded across the router
35. Which protocol uses TCP port 443 at layer 4?
Duplex mismatch
HTTPS
802.1Q and ISL
In an improperly implemented redundant topology
36. With regard to Ethernet media access methods - which of the following are true?
A device listens and waits until the media is not busy before transmitting. and All devices on an Ethernet segment see data that passes on the network medium.
It is the sum of the costs based on bandwidth
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.
Hosts use a logical bus topology
37. Acknowledgements - sequencing - and flow control are functions that are handled by which layer of the OSI model?
CertK Switch(config)# ip default-gateway 192.168.1.115
Layer 4
Decrease the window size.
Sequence number - Window size - and Acknowledgment number
38. 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?
Auto - On - and Desirable
Application
UDP will pass the information in the datagrams up to the next OSI layer in the order that they arrive.
Packet switching - Packet filtering and Internetwork communication.
39. 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?
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.
Congestion avoidance - Windowing and Buffering
Serial0/1 is down - line protocol is down
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.
40. Which of the protocols below use TCP at the transport layer?
Switches - Bridges - and Routers
SMTP - FTP - HTTP - and HTTPS
Duplex mismatch
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.
41. What are the switch and bridge port characteristics of a layer two spanning-tree network that is fully converged?
All switch and bridge ports are in either the forwarding or blocking state.
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.
Auto - On - and Desirable
802.1Q and ISL
42. Which OSI layer is associated with the following: The acknowledgment of transmissions - sequencing - and flow control across a network?
Layer 4
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.
Show cdp neighbor detail
Fiber optic cable.
43. At which layer of the OSI model does the protocol that provides the information displayed by the 'show cdp neighbors' command operate?
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.
SMTP - FTP - HTTP - and HTTPS
Duplex mismatch
Data link
44. You need to describe the various types of flow control to your co-workers. Which of the following are types of flow control that can be used in a network?
Configure the switch so that it has a lower priority than other switches in the network.
The network layer
Physical Layer and Datalink Layer
Congestion avoidance - Windowing and Buffering
45. Which Layer 4 protocol is used for a Telnet connections between two CK routers?
VLAN and Swtich
The Bridgeg ID and The bridge priority
Full-duplex Ethernet can provide higher throughput than can half-duplex Ethernet of the same bandwidth
TCP
46. The CK network administrator needs to determine what LAN devices to install on the CK network. What are two advantages of using Layer 2 Ethernet switches over hubs?
The port is experiencing errors
A broadcast domain with too many hosts - Broadcast storms - and Low bandwidth
Allowing simultaneous frame transmissions and filtering frames based on MAC addresses
Configure the switch so that it has lower priority than other switches in the network
47. Which of the following correctly describe steps in the OSI date encapsulation process?
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.
Layer 4
ARP and ICMP
Switches increase the number of collision domains in the network.
48. 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 sequence number in the TCP header.
Encapsulations PPP and authentication CHAP
It is the sum of the costs based on bandwidth
49. As a network Admin - you will need to decide on the appropriate network devices to use. Which of the following correctly describes the roles of the devices in a WAN?
All switch and bridge ports are in either the forwarding or blocking state.
Filtering can occur based on Layer 3 information and Broadcasts are not forwarded across the router
A CSU/DSU terminates a digital local loop - A modem terminates an analog local loop - A router is commonly considered a DTE device.
Decrease the window size.
50. Which two of the following values does STP take into consideration when it elects the root bridge?
HTTPS - SMTP - and TFTP
The Bridgeg ID and The bridge priority
A CSU/DSU terminates a digital local loop - A modem terminates an analog local loop - A router is commonly considered a DTE device.
Network