N+ Ch 1

Front 1

​(1) The amount of traffic, or data transmission activity, on a network. (2) A measure of the difference between the highest and lowest frequencies that a medium can transmit.

Back 1

​bandwidth

Front 2

​Data that is passed between applications or utility programs and the operating system, and includes control information.

Back 2

payload​

Front 3

​Damage that can shorten the life of a component and/or cause intermittent errors.

Back 3

upset failure

Front 4

System default that denies access during a system or network failure.​

Back 4

​fail close

Front 5

​The point of division between a telecommunications service carrier's network and a building's internal network.

Back 5

​demarcation point

Front 6

​A user's domain-level account, also called a global username or network ID, which is assigned by the network administrator and is kept in Active Directory.

Back 6

​global account

Front 7

​The use of data networks to carry voice, video, and other communications services in addition to data.

Back 7

convergence​

Front 8

The transfer of electrical charge between two bodies, such as when a technician touches a computer component.

Back 8

electrostatic discharge (ESD)​

Front 9

​(1) A unit of data that results from subdividing a larger protocol data unit. (2) A part of a network. Usually, a segment is composed of a group of nodes that share the same communications channel for all their traffic.

Back 9

​segment

Front 10

​System default that allows access during a system or network failure.

Back 10

fail open​

Front 11

​An open electrical circuit as a result of a failed circuit breaker is considered to be what type of failure system?

Back 11

​fail-close

Front 12

​Any computer or device on a network that can be addressed on the local network is referred to as a:

Back 12

​node

Front 13

​A standard network switch operates at what layer of the OSI model?

Back 13

​Layer 2

Front 14

At what layer of the OSI model do the IP, ICMP, and ARP protocols operate?​

Back 14

​Network

Front 15

HTTP, IMAP4, FTP, and Telnet are all examples of protocols that operate at what layer of the OSI model?​

Back 15

​Layer 7

Front 16

If a Network layer protocol is aware that a packet is larger than the maximum size for its network, it will divide the packet into smaller packets in a process known as:​

Back 16

​fragmentation

Front 17

In what network topology are devices daisy-chained together in a single line?​

Back 17

​bus topology

Front 18

vSelect the layer of the OSI model that is responsible for reformatting, compressing, and/or encrypting data in a way that the application on the receiving end can read:​

Back 18

​Presentation

Front 19

Static electricity can cause what two types of damage in electronic components?​

Back 19

​catastrophic failure, ​upset failure

Front 20

The device where a telecommunications service provider network ends and an organization's network begins is referred to as what option below?​

Back 20

​demarc

Front 21

The process of adding a header to the data inherited from the layer above is called what option below?​

Back 21

​encapsulation

Front 22

The proper handling procedures for substances such as chemical solvents is typically outlined in which of the following options?

Back 22

​Material Safety Data Sheet (MSDS)

Front 23

The segment or datagram protocol data unit exists at what layer of the OSI model?​

Back 23

​Transport layer

Front 24

​Using the same network to deliver multiple types of communications services, such as video, voice, and fax, is known as:

Back 24

​convergence

Front 25

What are the two main Transport Layer protocols?​

Back 25

TCP​, ​UDP

Front 26

What is the name for a client-server model with one server and many clients, such as when an application is used to watch a live sports event?​

Back 26

​multicast distribution

Front 27

What is the name for the protocol data unit (PDU) ​of the Data Link layer?

Back 27

​frame

Front 28

What layer of the OSI model describes how data between applications is synced and recovered if messages don't arrive intact at the receiving application?​

Back 28

​Session Layer

Front 29

What mail protocol is used to send mail messages to a server?​

Back 29

​SMTP

Front 30

​What physical network topology consists of all connected devices connecting to one central device, such as a switch?

Back 30

​star topology

Front 31

What two encryption protocols are commonly used with the Hypertext Transfer Protocol?

Back 31

​TLS, ​SSL

Front 32

What two mail delivery protocols below can be used by a client application to receive e-mail from a server?​

Back 32

POP3, ​IMAP4

Front 33

When using a Windows domain, what is the domain-level account for each user known as?​

Back 33

​global account

Front 34

​Which of the following is not one of the disadvantages of peer-to-peer networks?

Back 34

​They centralize user account logins

Front 35

Which two protocols can be used to gain remote access specifically to a server's command line interface, securely and unsecurely?

Back 35

Telnet, ​SSH

Front 36

After a problem and its symptoms have been identified, a theory regarding a probable cause should be established.​

Back 36

True

Front 37

Servers that have a NOS installed require less memory, processing power, and storage capacity that clients because servers are called on to handle only light processing loads and requests from multiple clients.​

Back 37

False

Front 38

Static electricity is an electrical charge in motion.​

Back 38

False

Front 39

The fundamental difference between a switch and a router is that a switch belongs only to its local network and a router belongs to two or more local networks.

Back 39

True

Front 40

The protocol data unit for the Physical layer of the OSI model is payload, or data.​

Back 40

False