A+ 901 Test 13

Question 1

Which of the cabling types listed below provide(s) protection against an outside signal interference?

Answer 1

Coaxial
Fiber-optic
STP

Question 2

One of the differences between the UTP and STP cabling is that the STP cable takes advantage of additional protective cover reducing signal interference from outside sources.

Answer 2

True

Question 3

In twisted-pair cabling wires are grouped into pairs and wires in each pair are twisted around each other in order to reduce:

Answer 3

Cross-talk

Question 4

What is the typical cable segment length for a copper twisted-pair Ethernet cable?

Answer 4

100 meters

Question 5

Category 3 (CAT3) cable is a 10 Mbps twisted-pair copper cable used in telephone wiring.

Answer 5

True

Question 6

Which of the following twisted-pair copper cabling types is most commonly used in modern Ethernet networks?

Answer 6

CAT5e

Question 7

What is the maximum cable segment length for a CAT5e cable?

Answer 7

100 meters

Question 8

Which of the answers listed below refer(s) to the characteristics of a Category 5e (CAT5e) cabling?

Answer 8

Twisted-pair cabling
RJ-45 connector
Copper cabling
1 Gbps Ethernet

Question 9

What is the minimum cabling requirement for a 10 Gbps connection over copper twisted-pair?

Answer 9

CAT6

Question 10

The Category 6 (CAT6) cabling supports 10 Gbps data transfer rate at a limited range of up to 55 meters, whereas CAT6A (Augmented) cabling allows for 10 Gbps data transfer rate over a standard cable segment length of 100 meters.

Answer 10

True

Question 11

The term “Plenum” refers to an enclosed space used for airflow, such as the one between dropped ceiling and structural ceiling in a building. Cabling coated with a fire-retardant jacket placed in this space is referred to as plenum-rated cabling. Plenum-rated cabling must meet special requirements so that it doesn’t catch on fire easily.

Answer 11

True

Question 12

Materials from which the plenum-rated cable’s cover is made include:

Answer 12

PVC

FEP

Question 13

Which of the following answers list examples of coaxial cabling types?

Answer 13

RG-59

RG-6

Question 14

Which of the terms listed below refers to a loss in signal strength during transmission caused by increasing distance and obstacles encountered on the signal path?

Answer 14

Attenuation

Question 15

What is the bit length of an IPv4 address?

Answer 15

32 bits

Question 16

Which of the following answers refer to the characteristic features of the 10.0.0.0 - 10.255.255.255 IPv4 address space?

Answer 16

Class A range

Non-routable (private) IP

Question 17

Which of the answers listed below refer to the 172.16.0.0 - 172.31.255.255 IPv4 address space?

Answer 17

Class B range

Non-routable (private) IP address range

Question 18

What are the characteristic features of the 192.168.0.0 - 192.168.255.255 IP address space?

Answer 18

Non-routable (private) IP address range

Class C range

Question 19

An IPv4 address in the range 169.254.0.1 through 169.254.255.254 indicates problem with what type of service?

Answer 19

DHCP

Question 20

An IPv6 address consists of:

Answer 20

128 bits

Question 21

IPv6 addresses are expressed with the use of:

Answer 21

Hexadecimal numbers

Question 22

A double colon in an IPv6 address indicates that part of the address containing only zeroes has been compressed to make the address notation shorter.

Answer 22

True

Question 23

Which of the following answers refers to an IPv6 link-local address?

Answer 23

FE80::/64

Question 24

An IP address assigned permanently to a computer by an Internet Service Provider (ISP) is known as:

Answer 24

Static IP address

Question 25

A system containing mappings of domain names to various types of data, such as for example numerical IP addresses is known as:

Answer 25

DNS