What type of cable would be used to make the connection between the console port of a router and a workstation?

Different situations may require UTP cables to be wired according to different wiring conventions. This means that the individual wires in the cable have to be connected in different orders to different sets of pins in the RJ-45 connectors.

The following are main cable types that are obtained by using specific wiring conventions:

• Ethernet Straight-through: The most common type of networking cable. It is commonly used to interconnect a host to a switch and a switch to a router.

• Ethernet Crossover: An uncommon cable used to interconnect similar devices together. For example to connect a switch to a switch, a host to a host, or a router to a router.

• Rollover: A Cisco proprietary cable used to connect to a router or switch console port.

Using a crossover or straight-through cable incorrectly between devices may not damage the devices, but connectivity and communication between the devices will not take place. This is a common error in the lab and checking that the device connections are correct should be the first troubleshooting action if connectivity is not achieved.

The figure shows the UTP cable type, related standards, and typical application of these cables. It also identifies the individual wire pairs for the TIA 568A and TIA 568B standards.

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← Which three acronyms/initialisms represent standards organizations? (Choose three.)

← What addressing information is recorded by a switch to build its MAC address table?

Cisco’s exams can be a lot of hard work- we know. But the worst thing you can do to yourself is to simply look up the answers to exam questions. Not only do you not learn anything- but you’re hurting your future in the process.
Instead, shouldn’t you get a helpful hint and get pointed in the right direction of where to look for an answer? That way, you can keep your dignity, hopes for the future, and of course your grade. The questions below are from the CCNA 1 module 5 exam- but instead of straight answers, we reason out why the answers are correct. If any type of math or decision making is involved, we leave that up to you (But we will of course give you the resources you need to complete the question.)

1. Refer to the exhibit. What is the appropriate cable to use at each of the numbered network connections?

A) 1-crossover; 2-straight-through; 3-crossover; 4-straight-through
B) 1-straight-through; 2-crossover; 3-straight-through; 4-straight-through
C) 1-straight-through; 2-crossover; 3-crossover; 4-straight-through
D) 1-rollover; 2-crossover; 3-straight-through; 4-straight-through
E) 1-rollover; 2-straight-through; 3-straight-through; 4-straight-through

More Info: The Difference Between Straight Through, Crossover, And Rollover Cables
Explanation: In the first computer, we are connecting it to a router’s console port- and so we will need a rollover cable. The second computer is linked to the Ethernet port, so it needs a crossover cable. The router to switch connection requires a straight-through cable, since they are unlike devices. The switch and the workstation are also unlike devices, so it is also a straight-through cable. D is correct.

2. Which two devices are considered OSI Layer 1 devices? (Choose two.)

A) hubs
B) routers
C) bridges
D) switches
E) repeaters

More Info: (None)
Explanation: OSI Layer 1 devices reside on the Physical Layer. These are considered “dumb” devices- both hubs and repeaters reside on this layer. A and E are correct.

3. What device is used to connect hosts to an Ethernet LAN and requires a straight-through UTP cable between the hosts and this device?

A) NIC
B) router
C) switch
D) server

More Info: What Is The Difference Between A Hub And A Switch?
Explanation: While you could say that the above answers all may be able to connect hosts to a LAN, only the switch would require a straight-through cable, since the host and switch are unlike devices. Note that the NIC is an integral component of a computer- so it doesn’t have any type of Ethernet cable connecting it to a computer. (Only cable connecting it to a network.)

4. What is the most common type of cabling used in LANs?

A) STP
B) UTP
C) coax
D) fiber

More Info: A Brief Overview Of Networking Media
Explanation: Single Twisted-Pair is quite popular, since it is cheap, easy to install, and quite durable. Each other method suffers from high cost or are rather difficult to install.

5. In which situations would a crossover cable be used to connect devices in a network? (Choose two.)

A) switch to PC
B) switch to hub
C) switch to router
D) switch to server
E) switch to switch

More Info: The Difference Between Straight Through, Crossover, And Rollover Cables
Explanation: The above article states that we use a crossover cable when connecting like devices- so B and E are both correct.

6. Refer to the exhibit. How many collision domains exist in the network?

A) 1
B) 2
C) 4
D) 7
E) 8

More Info: What Is The Difference Between A Hub And A Switch?
Explanation: Switches only create one collision domain. Since there are two connections to each part of the network, there are two collision domains- B is correct.

7. What type of cable would be used to make the connection between the console port of a router and a workstation?

A) crossover
B) rollover
C) straight-through
D) patch

More Info: The Difference Between Straight Through, Crossover, And Rollover Cables
Explanation: The above article states that to enter the console port, we need to use a rollover cable- B is correct.

8. Which function is a unique responsibility of the DCE devices shown in the exhibit?

A) transmission of data
B) reception of data
C) clocking for the synchronous link
D) noise cancellation in transmitted data

More Info: A Brief Overview Of Cabling LANs And WANs
Explanation: The clocking rate must be set on the DCE side of the cable, or communication will not take place. C is correct.

9. Which address does a bridge use to make filtering and switching decisions?

A) source MAC
B) source IP
C) destination MAC
D) destination IP
E) network IP address

More Info: (None)
Explanation: The bridge uses the destination MAC, since it is a layer two device. The source MAC would be impractical, since we need a “to” address, not a “from” address. C is correct.

10. What is characteristic of how a hub operates?

A) A hub selectively drops packets that represent potential security risks.
B) A hub forwards data out all interfaces except the inbound interface.
C) A hub dynamically learns the interfaces to which all devices are attached.
D) At start up, a hub queries the devices on all interfaces in order to learn the MAC addresses of the attached devices.
E) A hub transmits a frame to a specific interface based on the destination MAC address.

More Info: What Is The Difference Between A Hub And A Switch?
Explanation: The above article states that hubs forward data out all interfaces, except the inbound interface. Thus, B is corect. Unfortunately, hubs are dumb devices and do not work with MAC addresses, so A, C, D, and E are all incorrect

11. Users with systems that are attached to a hub are complaining about poor response time. What device could replace the hub and provide immediate response time improvement?

A) router
B) switch
C) bridge
D) repeater
E) A hub transmits a frame to a specific interface based on the destination MAC address.

More Info: What Is The Difference Between A Hub And A Switch?
Explanation: Since hubs split bandwidth between all interfaces, this can be a very poor performing device. Switches use microsegmentation to give bandwidth only to interfaces that need it at a specific time- so B is correct.

12. Which of the following are benefits of peer-to-peer networks? (Choose three.)

A) centralized security
B) easy to create
C) very scalable
D) no centralized equipment required
E) centralized administrator not required
F) centralized control of assets

More Info: A Brief Overview Of Cabling LANs And WANs
Explanation: Peer to peer networks are easy to create and are considered to be decentralized. This means that B, D, and E are all correct. The client/server model is centralized, and harder to create- which would apply to A, C, and F.

13. Which statement is accurate about a WAN link?

A) The link transmits data serially.
B) The link uses a maximum distance of 100 meters.
C) The link uses the same transmission rate as all other WAN links use.
D) The link uses the same standardized connector style that is used for all WAN technologies.

More Info: A Brief Overview Of Cabling LANs And WANs
Explanation: We know from the above article that WANs use serial connections to communicate. The transmission rate can be changed, so C is wrong. Different connectors may be used, so D is wrong. B is also wrong, since the maximum distance may be much longer than that- after all, the internet is a rather large WAN that spans the entire Earth.

14. Which items in the exhibit are DTE devices?

A) A and B
B) B and C
C) C and D
D) A and D
E) A, B, C, and D

More Info: A Brief Overview Of Cabling LANs And WANs
Explanation: D is the correct answer, since routers A and D both act as the client in the given scenario. To put it into perspective, you can imagine that each router is your home network, and your computer is connected to the router. Thus, you are the client.

15. At which layer of the OSI model does the MAC address of a NIC reside?

A) physical
B) application
C) network
D) transport
E) data link
F) session

More Info: What Is A Network Interface Card?
Explanation: The MAC address is a Layer 2 function- the Data Link Layer. E is the correct answer.

16. Refer to the exhibit. A technician measured the lengths of the CAT 5e structured cable runs in the exhibit. How should the technician evaluate the cabling shown in the diagram to the network administrator?

A) All cabling to work areas are within specifications.
B) Station A and B may experience intermittent problems because the length exceeds the recommended standard.
C) Station B may experience intermittent problems because the length exceeds the recommended standard.
D) Station C may experience intermittent network connectivity because the length is less than the recommended standard.
E) Station A and B will have intermittent problems because the length exceeds the recommended standard.
F) Station C will not have network connectivity because the length is less than the recommended standard.

More Info: A Brief Overview Of Networking Media
Explanation: If you check the distance specifications in the above article, you’ll notice that computer B is over the limit. Thus, C is the correct answer.

17. Which statement describes a typical use of Gigabit Ethernet?

A) to provide high-speed desktop connectivity for average users
B) to provide connectivity to low to medium volume applications
C) to provide medium volume connectivity to workgroup servers
D) to provide high-speed connectivity for backbones and cross connects

More Info: A Brief Overview Of Cabling LANs And WANs
Explanation: Gigabit Ethernet is commonly used for backbone cabling, since that is where the most traffic is present. D is correct. Refer to the above article for more information.

18. The ends of a UTP cable are shown in the exhibit. Which cable configuration is shown?

A) crossover
B) rollover
C) reversed-pair
D) straight-through
E) split-pair
F) console

More Info: The Difference Between Straight Through, Crossover, And Rollover Cables
Explanation: The above configuration matches the specification of a straight-through cable, D is correct.

19. The ends of a UTP cable are shown in the exhibit. Which cable configuration is shown?

A) console
B) crossover
C) rollover
D) reversed-pair
E) split-pair
F) straight-through

More Info: The Difference Between Straight Through, Crossover, And Rollover Cables
Explanation: The above configuration matches the specification of a crossover cable, B is correct.

20. Which of the following are benefits of a wireless network? (Choose two.)

A) higher data speeds
B) better security
C) mobility
D) less expensive NIC cards
E) no need to run cables to hosts

More Info: (None)
Explanation: This question should be fairly obvious. Without wires, you have more mobility- C is correct. For the same reason, E is also correct. The other results may be true in some cases, but it really depends on how the network is configured to judge its security or speed.