Acronyms

Question 1

A document that defines what a person may or may not do on an organization’s computers and networks.

Answer 1

AUP-Acceptable User Policy

Question 2

Protocol used by Microsoft clients and servers to share file and print resources.

Answer 2

SMB-Sever Message Block

AKA CIFS

Question 3

OSI

Answer 3

Open System Interface

reference model for other protocols

Question 4

A TCP/IP protocol used to handle many low-level functions such as error reporting. Messages are usually request and response pairs such as echo requests and responses, router solicitations and responses, and traceroute r/r. Messages are connection-less.

Answer 4

ICMP- Internet Control Message Protocol

Question 5

Protocol used to query and change a database used by the network. TCP/port 389

Answer 5

LDAP-Lightweight Directory Access Protocol

Question 6

Layer 4 transport protocol
Connection-oriented
Sends requests and gets acknowledgments
Recovery from errors, can manage out of order msgs
Flow control

Answer 6

TCP- Transmission Control Protocol

Question 7

Layer 4 transport protocol
Connection-less and unreliable delivery
Does not send acknowledgements
No error recovery, no reordering

Answer 7

UDP-User Datagram Protocol

Question 8

A protocol developed by Netscape for transmitting private documents over the Internet. Works by using a public key to encrypt sensitive data. Data is decrypted at the receiving end using a private key.

Answer 8

SSL-Secure Sockets Layer

Question 9

Technology in modern switches that can detect and block excessive traffic. Limits # of devices that can communicate.

Answer 9

Flood guard

Question 10

A protocol that enables switches to detect and prevent bridge loops automatically.

Answer 10

STP-Spanning Tree Protocol

Question 11

Can identify and block invalid STP traffic from a workstation.

Answer 11

BPDU-Bridge Protocol Data Unit

Question 12

Connecting multiple NICs in tandem to increase bandwidth in smaller increments.

Answer 12

NIC teaming

Question 13

A network engineer is concerned that nearby wireless networks may be interfering with internal wireless communication. Which of these could be used to verify this concern.

Answer 13

Spectrum Analyzer

Question 14

Upgrading can help with security.
is the program a personal computer’s microprocessor uses to get the computer system started after you turn it on. It also manages data flow between the computer’s operating system and attached devices such as the hard disk, video adapter, keyboard, mouse and printer. Upgrading can help with security.

Answer 14

BIOS-Basic input/basic output

Question 15

An interior gateway routing protocol developed for IP networks based on the shortest path first or link state algorithm.

Answer 15

OSPF- Open Shortest Path First

Question 16

An exterior gateway routing protocol that enables groups of routers to share routing information so that efficient, loop-free routes can be established. The one used on the internet today. Hybrid DRP.

Answer 16

BGP-4 Border Gateway Protocol

Question 17

A means of translating a system’s IP address into another IP address before sending it out to a larger network. Translate an internal private IP address into its own public IP address, enabling many systems to share a single IP address.

Answer 17

NAT-Network Address Translation (NAT)

Question 18

The most commonly used form of NAT, where the NAT uses the outgoing IP addresses and port numbers to map traffic from specific machines in the network.

Answer 18

PAT- Port Address Translation

Question 19

A clearly defined list of permissions that specifies what actions an authorized user may perform on a shared resource. To identify frames or packets for special treatment, to permit/deny the traffic.

Answer 19

ACL- Access Control List

Question 20

Controlling the flow of packets into or out of the network according to the type of packet or other rules. example:traffic going from large corporate network to small branch office, to help routers to queue up traffic and make sure data can be sent.

Answer 20

Traffic Shaping

Question 21

Policies that control how much bandwidth a protocol, PC, user, VLAN, or IP address may use.

Answer 21

QoS- Quality of Service

Question 22

A prioritization value used to apply to services, ports, or whatever QoS device might use. Preferential treatment based on layer 2 frame markings in the switch

Answer 22

CoS- Class of Service

Question 23

The underlying architecture that makes QoS work. Marking frames to give certain traffic priority.

Answer 23

DiffServ- Differentiated Services

Question 24

The centralized installation, configuration, and handling of every switch in a virtualized network. Especially in a large network. Uses learning and forwarding logic so it doesn’t have to check with the “brain” each time.

Answer 24

Distributed Switching

Question 25

A box that is a switch and a router. Operates at multiple layers of the OSI model.

Answer 25

Multi-layer switch

Question 26

Programming that allows a master controller (i.e. a switch) to determine how network components will move traffic through the network. Used in virtualization. Humans don’t touch the infrastructure, they interact with the application where they can make changes.

Answer 26

SDN- Software Defined Networking

Question 27

Address that is 32 bits in length, written in dotted decimal

Answer 27

IP v4

Question 28

Class A IPv4 addresses

Answer 28

1-126/8

Question 29

Class B IPv4 addresses

Answer 29

128-191/16

Question 30

Class c IPv4 addresses

Answer 30

192-223/24

Question 31

A private IP address space. To be used inside companies, don’t have to register. Not routable over the internet so you would need NAT

Answer 31

RFC 1918

Question 32

Private IP Class A

Answer 32

10.0.0.0 to 10.255.255.255

Question 33

Private IP Class B

Answer 33

172.16.0.0 to 172.31.255.255

Question 34

Private IP Class C

Answer 34

192.168.0.0 to 192.168.255.255