Post Test Week 4 Review

Question 1

This layer is where switches operate and provide a reliable link between two directly connected nodes. Detects and possibly fixes packet errors that may form on the physical layer.

Answer 1

Data link layer

Question 2

The ______ is a router interface connected to the local network that sends packets out of the local network.

Answer 2

gateway address

Question 3

The ________ is the computer that routes the traffic from a workstation to the outside network that is serving the Web pages.

Answer 3

Gateway

Question 4

MMF stands for?

Answer 4

Multi-mode Optical Fiber

Question 5

Computers and routers use the _________ to calculate the network portion of the destination IPv4 address.

Answer 5

subnet mask

Question 6

_______ is a device that enables you to hook up your PC to a local cable TV line and receive data at about 1.5 Mbps.

Answer 6

cable modem

Question 7

Which of the following expansion slots uses a serial connection? a. PCI

b. PCI-X
c. PCIe
d. AGP

Answer 7

c. PCIe

Question 8

The IP address 128.0.0.1 would be part of which IPv4 class?

Answer 8

Class B

Question 9

_______ opens ports in response to inbound traffic for a specified service.

Answer 9

Port forwarding

Question 10

POTS stands for?

Answer 10

Plain Old Telephone Service

Question 11

CRT stands for?

Answer 11

Cathode Ray Tube

Question 12

This tool is a device used to conjoin two pieces of metal by deforming one or both of them in a way that causes them to hold each other.

Answer 12

Crimper

Question 13

After a resource on your LAN sends outbound traffic through a “trigger” port, the router listens for inbound traffic through a specified port or port range. This function is necessary for applications, such as videoconferencing or gaming, that require data exchange through specified ports. What is this referred to as?

Answer 13

Port triggering

Question 14

You work as a Network Administrator for De Laurentis Unlimited Inc. The company has a TCP/IP-based network. You are configuring a cable modem on the network to connect to the Internet. Which of the following types of connectors are supported by the cable modem? Choose all that apply. a. RJ-45 b. F-type c. USB d. MT-RJ

Answer 14

a. RJ-45 b. F-type c. USB

Question 15

These are the Internet’s equivalent of a phone book. They maintain a directory of domain names and translate them to Internet Protocol (IP) addresses.

Answer 15

DNS (Domain Name Server(s))

Question 16

This device simulates a network connection and has two main functions: Used to test ports and data flow from one source to another.

Answer 16

Loopback plug

Question 17

In computer networking ________ refers to a security access control method whereby the 48-bit address assigned to each network card is used to determine access to the network.

Answer 17

MAC filtering

Question 18

This layer is where router operates.

Answer 18

Network layer

Question 19

IPv6 addresses are broken down into three sections:

Answer 19

Global routing prefix (2001:7120:0000) A subnet (80010) The Individual interface ID (0000:0000:0000:1F10)

Question 20

A tool used for inserting wire into insulation-displacement connectors on punch down blocks, patch panels, keystone modules, and surface mount boxes (also known as biscuit jacks).

Answer 20

Punchdown tool

Question 21

Used to verify the electrical connections in a cable or other wired assembly

Answer 21

Cable Tester

Question 22

This layer is responsible for creating and maintaining sessions between operating system and presentation layer + other third party machines.

Answer 22

Session layer

Question 23

This layer is where user inputs data and data is output to user. Usually software; depends on network architecture.

Answer 23

Application layer

Question 24

This RAID has the highest fault tolerance.

Answer 24

RAID 5

Question 25

SFTP stands for?

Answer 25

Secure File Transfer Protocol

Question 26

Which OSI layer signals “all clear” by making sure the data segments are error free?

Answer 26

Transport layer

Question 27

This layer is responsible for logistics of the session.

Answer 27

Transport layer

Question 28

This is a type of digital audio interconnect used in consumer audio equipment to output audio over reasonably short distances. The signal is transmitted over either a coaxial cable with RCA connectors or a fiber optic cable with TOSLINK connectors.

Answer 28

S/PDIF

Question 29

This layer is where the operating system lies (Windows, OS X, etc.).

Answer 29

Presentation Layer

Question 30

This layer is the hardware that makes up network.

Answer 30

Physical layer