CompTIA Network+ Certification (N10-003) Part 5

1. Which type of connector is used for fiber-optic cable?

BNC

F-Type

RJ-45

ST and SC

ST and SC connectors are used for fiber-optic cable.

Explanation

ST and SC connectors are used for fiber-optic cable.

2. What type of connector is used for twisted pair cable?

BNC

RJ-11

RJ-45

ST

RJ-45 connectors are used for both shielded and unshielded twisted pair cable

Explanation

RJ-45 connectors are used for both shielded and unshielded twisted pair cable

3. You work as a network technician and you need to assemble a Category 5 cable. Which connector would you require?

BNC

RJ-11

RJ-45

SC

Category 5 cable refers to unshielded twisted pair (UTP) cable. RJ-45 connectors are used for both shielded and unshielded twisted pair cable.

Explanation

Category 5 cable refers to unshielded twisted pair (UTP) cable. RJ-45 connectors are used for both shielded and unshielded twisted pair cable.

4. You work as a network technician. You have a cable with an RJ-45 connector at either end. Which type of cable do you have?

Unshielded Twisted Pair cable

Single mode fiber-optic cable

Multimode fiber-optic cable

RG-58 co-axial cable

Unshielded twisted pair (UTP) cable has RJ-45 connectors at either end.

Explanation

Unshielded twisted pair (UTP) cable has RJ-45 connectors at either end.

5. Which type of connector is used for co-axial cable?

BNC

RJ-11

RJ-45

SC

BNC and F-Type connectors are used on co-axial cable.

Explanation

BNC and F-Type connectors are used on co-axial cable.

6. You have two workstations each with a 100Base-T network card. You want to connect the two workstation directly without the use of a hub or switch. Which cable would you use?

CAT3 crossover

CAT5 crossover

CAT3 straight

CAT5 straight

Both workstation network interface cards (NICs) will be physically and electronically the same medium dependent interface (MDI), therefore, you need a crossover cable to connect the two together. 100Base-T has a transmission speed of up to 100 Mbps. The minimum twisted-pair, copper cable that can support these speeds is CAT5 cable.

Explanation

Both workstation network interface cards (NICs) will be physically and electronically the same medium dependent interface (MDI), therefore, you need a crossover cable to connect the two together. 100Base-T has a transmission speed of up to 100 Mbps. The minimum twisted-pair, copper cable that can support these speeds is CAT5 cable.

7. The network you work on has a 100Base-T switch. You need to add a new host to the network. Which cable would you require?

RG-58 co-axial cable

Category 3 UTP cable

Category 5 UTP cable

Multi-mode fiber-optic cable

Single-mode fiber-optic cable

100Base-T uses twisted pair cable as indicated by the T in 100Base-T. 100Base-T has a transmission speed of up to 100 Mbps. The minimum twisted-pair, copper cable that can support these speeds is Category 5 cable.

Explanation

100Base-T uses twisted pair cable as indicated by the T in 100Base-T. 100Base-T has a transmission speed of up to 100 Mbps. The minimum twisted-pair, copper cable that can support these speeds is Category 5 cable.

8. Which of the following statements BEST describes CAT5 cable?

Two pairs of twisted copper wire with a frequency limitation of 1 MHz

Four pairs of twisted copper wire with a frequency limitation of 10 MHz

Four pairs of twisted copper wire with a throughput of 100 Mbps

Four pairs of twisted copper wire with a throughput of 1000 Mbps

CAT5 cable has four pairs of twisted copper wire with a throughput of 100 Mbps

Explanation

CAT5 cable has four pairs of twisted copper wire with a throughput of 100 Mbps

9. Which of the following fiber-optic solutions uses the longest wavelength beams?

1000Base-SX

10GBase-ER

10GBase-LR

10GBase-SR

10GBase-ER uses extra long wavelength beams of 1550 nm.

Explanation

10GBase-ER uses extra long wavelength beams of 1550 nm.

10. Which of the following would require a BNC connector?

10Base-2

100Base-T

1000Base-SX

10GBase-LR

10Base-2, which is Thinnet, uses RG-58 co-axial cable with BNC connectors.

Explanation

10Base-2, which is Thinnet, uses RG-58 co-axial cable with BNC connectors.

11. Which type of connector would be used for Thinnet?

BNC

RJ-11

RJ-45

SC

BNC connectors are used on RG-58 co-axial cable as used in Thinnet.

Explanation

BNC connectors are used on RG-58 co-axial cable as used in Thinnet.

12. You work as a technician on a network with a 1000Base-SX backbone. Which connectors can you use on the backbone?

F-Type

RJ-45

BNC

SC

1000Base-SX uses fiber optic cable with the older SC connectors or the small form factor LC connectors.

Explanation

1000Base-SX uses fiber optic cable with the older SC connectors or the small form factor LC connectors.

13. What is the minimum UTP cable rating for a 10Base-T network?

CAT2

CAT3

CAT4

CAT5e

A 10Base-T network operates at up to 10 Mbps. The minimum cable rating that can support this speed is CAT3 cable, which is rated up to 16 Mbps while CAT2 cable is rated at a maximum 4 Mbps.

Explanation

A 10Base-T network operates at up to 10 Mbps. The minimum cable rating that can support this speed is CAT3 cable, which is rated up to 16 Mbps while CAT2 cable is rated at a maximum 4 Mbps.

14. Which of the following supports the longest transmission distance?

1000Base-SX

10GBase-ER

10GBase-LR

10GBase-SR

10GBase-ER has a maximum transmission distance of 40 kilometers, while 10GBase-SR has a maximum transmission distance of 300 meters, 1000Base-SX a maximum transmission distance of 550 meters, and 10GBase-LR a maximum transmission distance of 10 kilometers.

Explanation

10GBase-ER has a maximum transmission distance of 40 kilometers, while 10GBase-SR has a maximum transmission distance of 300 meters, 1000Base-SX a maximum transmission distance of 550 meters, and 10GBase-LR a maximum transmission distance of 10 kilometers.

15. Your company has a routed network. You need to extend the network by adding a second router. What would you use to connect the two routers?

A patch cable

A crossover cable

A Category 5 cable

Two routers cannot be connected together

The ports on the two routers will be physically and electronically the same medium dependent interface (MDI), therefore, you need a crossover cable to connect the two together.

Explanation

The ports on the two routers will be physically and electronically the same medium dependent interface (MDI), therefore, you need a crossover cable to connect the two together.

16. You work as the network technician for a company that has acquired an adjacent building. You need to connect the networks, laying the cable in the wiring duct between the two buildings. Which cable would be most suitable?

Unshielded twisted pair (UTP) cable

Shielded twisted pair (STP) cable

Co-axial cable

Fiber-optic cable

There could be electromagnetic interference (EMI) in the wiring duct. Fiber optic cable is immune to EMI and would be the best option.

Explanation

There could be electromagnetic interference (EMI) in the wiring duct. Fiber optic cable is immune to EMI and would be the best option.

17. Which of the following fiber-optic standards uses wavelength beams of 1550 nanometers?

1000Base-SX

10GBase-ER

10GBase-LR

10GBase-SR

10GBase-ER uses extra long wavelength beams of 1550 nm.

Explanation

10GBase-ER uses extra long wavelength beams of 1550 nm.

18. Which of the following statements regarding 1000Base-TX is true?

1000Base-TX uses a minimum of CAT5e UTP cable and has a maximum transmission speed of 1000 Mbps and a maximum transmission distance of 100 meters.

Explanation

1000Base-TX uses a minimum of CAT5e UTP cable and has a maximum transmission speed of 1000 Mbps and a maximum transmission distance of 100 meters.

19. Which of the following fiber-optic standards use wavelength beams of 1310 nanometers?

1000Base-SX

10GBase-ER

10GBase-LR

10GBase-SR

10GBase-LR uses long wavelength beams of 1310 nm.

Explanation

10GBase-LR uses long wavelength beams of 1310 nm.

20. A patch cable is used to connect which of the following in a token ring network?

A host to a switch

A host to a hub

Two MAUs

Two hosts

MAUs are like hubs in a token ring network. Two MAUs are interconnected with a patch cable.

Explanation

MAUs are like hubs in a token ring network. Two MAUs are interconnected with a patch cable.

21. Which of the following statements is true?

While 1000Base-LX can use either multi-mode or single-mode fiber, it has a longer transmission distance when multimode fiber is used

While both 10GBase-ER and 10GBase-LR use single-mode fiber, 10GBase-LR has a longer transmission distance

While 10GBase-SR has a greater transmission speed than 1000Base-SX, 10GBase-SR has a shorter maximum transmission distance than 1000Base-SX

While 100Base-FX uses multi-mode fiber, it has a greater transmission distance than 1000Base-LX with single-mode fiber

10GBase-SR has a throughput of up to 10 Gbps while 1000Base-SX has a throughput of up to 1000 Mbps (1 Gbps). However, 10GBase-SR has a maximum transmission distance of up to 300 meters while 1000Base-SX has a maximum transmission distance of up to 550 meters.

Explanation

10GBase-SR has a throughput of up to 10 Gbps while 1000Base-SX has a throughput of up to 1000 Mbps (1 Gbps). However, 10GBase-SR has a maximum transmission distance of up to 300 meters while 1000Base-SX has a maximum transmission distance of up to 550 meters.

22. Which cable would you need to connect a new host to a 10GBase-SR switch?

RG-58 co-axial cable

CAT5e UTP cable

Multi-mode fiber-optic cable

Single-mode fiber-optic cable

10GBase-SR uses multimode fiber optic cable that has a maximum transmission distance of 300 meters.

Explanation

10GBase-SR uses multimode fiber optic cable that has a maximum transmission distance of 300 meters.

23. You work on a 1000Base-TX network. To make full use of the bandwidth offered by 1000Base-TX, which UTP cable should you use?

CAT3

CAT5

CAT5e

CAT6

A 1000Base-TX network operates at up to 1000 Mbps. The minimum cable rating that can support this bandwidth speed is CAT5e cable, which is rated at up to 1000 Mbps while CAT5 cable is limited to 100 Mbps.

Explanation

A 1000Base-TX network operates at up to 1000 Mbps. The minimum cable rating that can support this bandwidth speed is CAT5e cable, which is rated at up to 1000 Mbps while CAT5 cable is limited to 100 Mbps.

24. Which of the following are the most common fiber-optic cable connectors?

MT-RJ and LC

ST and MT-RJ

LC and SC

SC and ST

ST and SC connectors are used for fiber optic cable

Explanation

ST and SC connectors are used for fiber optic cable

25. You have purchased a new cable modem which was supplied without cables. You need to connect the cable modem to a 100Base-T switch. Which of the following cables would you require?

A straight-through Category 5e patch cable and a serial cable

A crossover Category 5e patch cable and a RG-6 co-axial cable

A straight-through Category 5e patch cable and a RG-6 co-axial cable

A crossover Category 5e patch cable and a serial cable

You can connect a cable modem to a computer via a switch. However, the cable modem's Ethernet connection is physically and electronically the same as a medium dependent interface-crossover (MDI-X) port on the switch, therefore you need a crossover cable to connect the two. You would also need a RG-6 cable that the cable modem uses to receive its signals. This cable connects to the wall socket, which feeds into the cable from the cable provider.

Explanation

You can connect a cable modem to a computer via a switch. However, the cable modem's Ethernet connection is physically and electronically the same as a medium dependent interface-crossover (MDI-X) port on the switch, therefore you need a crossover cable to connect the two. You would also need a RG-6 cable that the cable modem uses to receive its signals. This cable connects to the wall socket, which feeds into the cable from the cable provider.

26. You work with a 1000Base-SX network. Which of the following connectors would you expect to find on the network?

MT-RJ

LC

ST

RJ-45

ST connectors are found on the older Gigabit Ethernet that uses fiber optic cable, such as 1000Base-FX and 1000Base-LX

Explanation

ST connectors are found on the older Gigabit Ethernet that uses fiber optic cable, such as 1000Base-FX and 1000Base-LX

27. You want to connect a cable modem to a switch. Which of the following would you use?

A straight-through Category 5e patch cable

A crossover Category 5e patch cable

A RG-6 co-axial cable

A serial cable

The cable modem's Ethernet connection is physically and electronically the same as a medium dependent interface-crossover (MDI-X) port on the switch, therefore, you need a crossover cable to connect the cable modem to the switch, and not a straight-through cable.

Explanation

The cable modem's Ethernet connection is physically and electronically the same as a medium dependent interface-crossover (MDI-X) port on the switch, therefore, you need a crossover cable to connect the cable modem to the switch, and not a straight-through cable.

28. Which of the following statements is false?

While 1000Base-LX can use either multi-mode or single-mode fiber, it has a longer transmission distance when multi-mode fiber is used

While both 10GBase-ER and 10GBase-LR use single-mode fiber, 10GBase-ER has a longer transmission distance

While 10GBase-SR has a greater transmission speed than 1000Base-SX, 10GBase-SR has a shorter maximum transmission distance than 1000Base-SX

While 100Base-FX uses multi-mode fiber, it has the same maximum transmission distance than 1000Base-LX with single-mode fiber has

Multi-mode fiber is generally used for short transmission distances while single-mode fiber is used for longer transmission distances. 1000Base-LX with multi-mode fiber has a maximum transmission distance of 550 meters while 1000Base-LX with single-mode fiber has a maximum transmission distance of 2000 meters.

Explanation

Multi-mode fiber is generally used for short transmission distances while single-mode fiber is used for longer transmission distances. 1000Base-LX with multi-mode fiber has a maximum transmission distance of 550 meters while 1000Base-LX with single-mode fiber has a maximum transmission distance of 2000 meters.