Lesson 3 Topic 3A Deploy Networking Devices

Question 1

Most network use [blank] systems to reduce cabling cost complexity

Answer 1

intermediate systems

Question 2

What imposes a distance limitation on links passing over copper or fiber cable?

a) Signal strength
b) Attenuation

Answer 2

b) Attenuation

The attenuation of signals passing over copper or fiber cable imposes a distance limitation on links. A link where the cable length exceeds the distance limitation may not achieve the required speed or may be unreliable.

Question 3

What may happen if the cable length exceeds the distance limitation?

a) Faster transmission speed
b) Guaranteed reliability
c) Unreliability or failure to achieve the required speed

Answer 3

c) Unreliability or failure to achieve the required speed

Question 4

Which type of cable is affected by attenuation?

a) Copper only
b) Fiber only
c) Both copper and fiber

Answer 4

c) Both copper and fiber

The attenuation of signals passing over copper or fiber cable imposes a distance limitation on links. A link where the cable length exceeds the distance limitation may not achieve the required speed or may be unreliable.

Question 5

What function does a repeater serve in a network?

a) Signal encryption
b) Distance boosting
c) Data compression
d) Routing control

Answer 5

b) Boosting distance

The attenuation of signals passing over copper or fiber cable imposes a distance limitation on links. A link where the cable length exceeds the distance limitation may not achieve the required speed or may be unreliable. A repeater overcomes the distance limitation by boosting the signal at some point along the cable run.

Question 6

At which layer of the OSI model does a repeater operate?

a) Network layer (Layer 3)
b) Transport layer (Layer 4)
c) Physical layer (Layer 1)
d) Data link layer (Layer 2)

Answer 6

c) Physical layer (Layer 1)

A repeater works at the physical layer (Layer 1) of the OSI model and is transparent with regard to the rest of the network infrastructure (the link is treated as one length of cable). A repeater is always powered and represents a single point of failure for the link.

Question 7

What is a potential downside of using a repeater?
a) Increased security risks
b) Higher network latency
c) Greater data loss
d) Single point of failure

Answer 7

d) Single point of failure

Question 8

What does a repeater connect in a network?
a) Two different cable types
b) Two cable segments of different lengths
c) Two cable segments of the same type
d) A cable segment and a network device

Answer 8

c) Two cable segments of the same type

Question 9

What type of repeater is also known as an optical-electrical-optical (OEO) repeater?

a) Copper repeater
b) Fiber repeater
c) Ethernet repeater
d) Wireless repeater

Answer 9

b) Fiber repeater

Question 10

Where a repeater connects two cable segments of the same type, a media converter is used to?

Answer 10

transition from one cable type to another.

Question 11

Give an example of Fiber Optic Repeater

Answer 11

Such repeaters are known as optical-electrical-optical (OEO)