Terms

Question 1

A network protocol and software program used to access remote computers and terminals over the internet.

Answer 1

Telnet

Question 2

Layer 7 of OSI Model. Network processes to applications. Provides access for users.

Answer 2

Application Layer

Question 3

Layer 6 of OSI Model. Ensures data is readable by receiving systems. Data representation/Syntax.

Answer 3

Presentation Layer

Question 4

Layer 5 of OSI Model. Inter-host communication. Examples include Net-bios, PPTP.

Answer 4

Session Layer

Question 5

Layer 4 of OSI Model. End to end connections. Message segmentation. Handles transportation issues between host. Examples: TCP/IP and UDP.

Answer 5

Transport Layer

Question 6

Layer 3 of OSI Model. Data Delivery. Switches. Selects the best path to deliver data. OSPF, BGP, IS-IS. IP addresses.

Answer 6

Network Layer

Question 7

Layer 2 of OSI Model. Access to media. Defines how data is formatted for transmission and how access to the network is controlled. Ethernet. Mac Address.

Answer 7

Datalink Layer

Question 8

Layer 1 of OSI Model. Binary Transmission. All 1’s and 0’s Bits level.

Answer 8

Physical Layer

Question 9

The language a computer uses to access the internet. A transport layer protocol that is used to create connection between remote computers by transporting and ensuring the delivery of messages over supporting networks and the Internet. One of the most used protocols.

Answer 9

TCP/IP

Question 10

An addressing device that acts as a hardware identifier.

Answer 10

MAC address

Question 11

A cryptographic protocol and interface for executing network services, shell services, and secure network communication with a remote computer.

Answer 11

SSH (secure shell)

Question 12

Part of the Internet Protocol suite used by programs running on different computers on a network. It is used to send short messages called datagrams but overall is unreliable and connectionless.

Answer 12

UDP

Question 13

has a Binary range of 0.0.0.0 to 127.255.255.255 Network address is its first 8 bits. Starts with Binary 0.

Answer 13

Class A

Question 14

has a Binary range of 128.0.0.0 to 191.255.255.255 Network address is first 8 bits. Starts with Binary 1 0

Answer 14

Class B

Question 15

has a Binary range 192.0.0.0 to 223.255.255.255 Network address is first 24 bits. Starts with Binary 1 1 0

Answer 15

Class C

Question 16

multicast with a Binary range of 224.0.0.0 to 239.255.255.255 Starts with a Binary 1 1 1 0

Answer 16

Class D

Question 17

has a binary range of 240.0.0.0 to 255.255.255.255 Starts with Binary 1 1 1 1. Is reserved for broadcasts.

Answer 17

Class E

Question 18

a connectionless protocol used in packet-switched layer networks, such as Ethernet. It provides the logical connection between network devices by providing identification for each device.

Answer 18

IPv4 (Internet Protocol Version 4)

Question 19

an Internet Protocol (IP) used for carrying data in packets from a source to a destination over various networks. Is the enhanced version of IPv4 and can support very large numbers of nodes as compared to IPv4. It allows for 2128 possible node, or address, combinations.

Answer 19

IPv6 (Internet Protocol Version 6)

Question 20

host sends data to all devices on a specific network. Binary 1’s in the entire host partition of the address. 172.31.255.255

Answer 20

Directed Broadcast Address

Question 21

used to let a system send a message to itself for testing. This is very useful to make sure that the TCP/IP stack is correctly installed on a machine.

Answer 21

Local Loopback Address

Question 22

a way to forward traffic between different VLAN by implementing a router in the network.

Answer 22

interVLAN Routing

Question 23

a group of devices on one or more LANs that are configured to communicate as if they were attached to the same wire.

Answer 23

VLAN

Question 24

Command line mode that has the least amount of commands available and does not need authentication. Notated by a > symbol - Router>

Answer 24

User Mode

Question 25

Command line mode that allows you to use many show commands, debugging, and is required to configure the device. Notated by a # symbol - Router#

Answer 25

Enable/Privilege Mode

Question 26

Command line mode that allows you to change global parameters of the configuration of the device including hostname and banner motd(message of the day). Notated by a (config)# - Router(config)# conf t

Answer 26

Global Configuration Mode

Question 27

Command line mode that allows you to change the interface configuration (IP Address or enable/disable interface). Notated by a (config-if)# - Router(config-if)# int

Answer 27

Interface Mode

Question 28

Command line mode that allows you to configure option on console, auxiliary, or vty ports. Notated by a (config-line)# - Router(config-line)# line console 0

Answer 28

Line Mode

Question 29

a command line interface created in a router and used to facilitate a connection to the daemon via Telnet, a network protocol used in local area networks.

Answer 29

Virtual Teletype (VTY)

Question 30

Command prompt command that searches queries all MAC addresses in the same IP range as the endpoint running the command.

Answer 30

arp -a

Question 31

Uses a single cable where each device taps into by using either a vampire tap or a T-connector. Ex. LAN party

Answer 31

Bus Topology

Question 32

Uses a cable in a circular loop. However, it can cause packet collision

Answer 32

Ring Topology

Question 33

Circular topology that uses permission based transmission. Ex - the talking ring in grade school.

Answer 33

Token Ring Topology

Question 34

New standard of token ring.

Answer 34

FDDI Ring

Question 35

Most popular physical LAN topology. All devices connect to a single point.

Answer 35

Star Topology

Question 36

similar to star topology but w/ WAN links instead of LAN connections. Is used to connect multiple sites.

Answer 36

Hub and Spoke Topology

Question 37

The most optimal network topology due to optimal routing always being available because every node connects to every other node.

Answer 37

Full-mesh Topology

Question 38

A hybrid of Full-mesh Topology and Hub and Spoke Topology. It provides optimal fail over for main traffic but not for less important connections.

Answer 38

Partial Mesh Topology

Question 39

This uses a WAP as a centralized point and supports wireless security controls.

Answer 39

Infrastructure Mode

Question 40

A de-centralized wireless network which creates peer to peer connecting and does not require a router or AP

Answer 40

Ad-hoc Mode

Question 41

Interconnection of different types of nodes, devices, and radios.

Answer 41

Wireless Mesh Topology

Question 42

Data name for Layer 1(Physical Layer) of the OSI Model

Answer 42

Bits

Question 43

Data name for Layer 2 (Datagram Layer) of the OSI Model

Answer 43

Frames

Question 44

Data name for Layer 3 (Networking Layer) of the OSI model

Answer 44

Packets

Question 45

Data name of Layer 4 (Transport Layer) of the OSI model

Answer 45

Segments(TCP), Datagrams(UDP)

Question 46

Data name for Layer 5 (Session Layer), Layer 6 (Presentation Layer), and Layer 7 (Application Layer)

Answer 46

Data

Question 47

Start stop transmission similar to morris code.

Answer 47

Asynchronous

Question 48

Uses a reference clock to coordinate transmissions by both sender and receiver

Answer 48

Synchronous

Question 49

Provides connection services and allows ack of receipt of messages.

Answer 49

LLC (Logical Link Control)

Question 50

Connection oriented protocol that uses a three-way handshake to create a reliable way to transport segments across a network.

Answer 50

TCP (Transmission Control Protocol)

Question 51

Connection-less protocol that is an unreliable way to transport segments across the network. Used for streaming audio and video.

Answer 51

UDP (User Datagram Protocol)

Question 52

Allows the clients to adjust the amount of data in each segment

Answer 52

Windowing

Question 53

Used to setup, maintain, and tear down voice and video connections.

Answer 53

H.323

Question 54

Where the outer WAN ends and your LAN begins.

Answer 54

Demarcation Point

Question 55

Central point of a network hub

Answer 55

Backbone switch

Question 56

Uses HSRP to create virtual IP and MAC addresses to provide to active and sturdy routers

Answer 56

First Hop Redundancy

Question 57

Combines multiple physical connections into a single logical connection to minimize or prevent congestion

Answer 57

Link Aggregation (IEEE 802.3ad)

Question 58

Forwards traffic based on different priority markings

Answer 58

QoS(Quality of Signal)

Question 59

Permits redundant links between switches and prevents looping of network

Answer 59

STP (Spanning Tree Protocol)

Question 60

Allows different logical networks to share the same physical hardware and provides added security and efficiency

Answer 60

VLAN

Question 61

Multi-vlan transmission over the same physical cable

Answer 61

VLAN trunking (802.1q)

Question 62

The default subnet mask for a given IP

Answer 62

Classful Mask

Question 63

Allows for the borrowing of the host bits and reassigning them to the net portion.

Answer 63

CIDR (Class-less Inter-Domain Routing)

Question 64

Allows for the use of a classless subnet mask to create smaller networks with fewer hosts in each network

Answer 64

Subnetting

Question 65

Prevents a route learned on one interface from being advertised back out of that same interface.

Answer 65

Split Horizon

Question 66

Causes a route received on one interface to be advertised back out of that same interface w/ a metric considered to be infinite(very high cost)

Answer 66

Poison Reverse