A+ 901 Test 16

Question 1

A router configuration feature that allows for opening an inbound port temporarily based on the outbound requests made by hosts placed inside a private network is called:

Answer 1

Port triggering

Question 2

A lightly protected subnet consisting of publicly available servers placed on the outside of the company’s firewall is commonly referred to as:

Answer 2

DMZ

Question 3

Which of the following solutions is used to hide the internal IP addresses by modifying IP address information in IP packet headers while in transit across a traffic routing device?

Answer 3

NAT

Question 4

A solution that alleviates the problem of depleting IPv4 address space by allowing multiple hosts on the same private LAN to share a single public IP address is known as:

Answer 4

NAT

Question 5

Dynamic Network Address Translation (DNAT) provides a permanent mapping between a private IP address and a public IP address on a one-to-one basis.

Answer 5

False

Question 6

Static Network Address Translation (SNAT) provides a mapping between private IP address and any of the IP addresses belonging to the available public IP address pool.

Answer 6

False

Question 7

Which of the following solutions allows network administrators to prioritize certain types of network traffic?

Answer 7

QoS

Question 8

A software embedded into a hardware chip is commonly referred to as:

Answer 8

Firmware

Question 9

A type of architecture that simplifies networking by allowing devices to dynamically join a network, autoconfigure, and learn about the presence and capabilities of other devices is known as:

Answer 9

UPnP

Question 10

Which of the answers listed below refers to zero-configuration networking?

Answer 10

UPnP

Question 11

Which of the following technologies simplifies configuration of new wireless networks by providing non-technical users with a capability to easily configure network security settings and add new devices to an existing network?

Answer 11

WPS

Question 12

Examples of technologies that are not recommended and should be disabled due to their known vulnerabilities or other security risks they might pose include:

Answer 12

WPS
UPnP
WEP

Question 13

The use of cable modems within a standard cable television infrastructure for Internet access is commonly referred to as:

Answer 13

Broadband cable

Question 14

Which of the following enables broadband Internet access based on the cable television infrastructure?

Answer 14

DOCSIS

Question 15

What is the most common type of a DSL Internet access?

Answer 15

ADSL

Question 16

Which of the following Internet access types takes advantage of the traditional PSTN lines?

Answer 16

Dial-up

Question 17

Which of the Internet connection types listed below types is the slowest?

Answer 17

Dial-up

Question 18

Which of the following choices refers to an Internet connection type that offers the highest data signaling rate?

Answer 18

Fiber

Question 19

What are the characteristic features of satellite Internet connections?

Answer 19

Signal latency
Interference (weather dependent)
Relatively low connection speed

Question 20

Which of the following solutions allows for simultaneous digital transmission of voice, video, data, and other network services over a PSTN?

Answer 20

ISDN

Question 21

A network connecting computers within a small geographical area such as a building or group of buildings is commonly referred to as a:

Answer 21

LAN

Question 22

A computer network connecting multiple smaller networks over very large geographical areas is known as:

Answer 22

WAN

Question 23

The Internet is an example of a large public WAN.

Answer 23

True

Question 24

A type of limited-range computer network used for data transmission among various types of personal devices centered around a single workstation is called:

Answer 24

PAN

Question 25

A computer network connecting multiple LANs over an area of a city or campus is called:

Answer 25

MAN