Network+ Guide To Networks Chapter 9 - Unified Communications And Network Performance Management

Front 1

The assessment, monitoring, and maintenance of all aspects of a network is known as what?

Back 1

Network Management

Front 2

A report of the network's current state of operation is known as what?

Back 2

Baseline

Front 3

Measurements that include the utilization rate for your network backbone, number of users logged on per day or hour, number of protocols that run on your network, statistics about errors, frequency with which networked applications are used, or information regarding which users take up the most bandwidth is known as what?

Back 3

A Baseline

Front 4

The two processes that allow you to assess a network's status on an ongoing bases are:

Back 4

Performance Management (monitoring how well the links and devices are keeping up with the demands placed on them).

Fault Management (the detection and signaling of device, link, or component faults).

Front 5

A process in which a network management console, which may be a server or workstation collects data from multiple networked devices at regular intervals is known as what?

Back 5

Polling

This central collection point is called the network management system (NMS)

Front 6

The term used to describe an agent that collects information about a device's operations and provides it to the NMS (Network Management System).

Back 6

Network Management Agent.

Front 7

Part of the TCP/IP protocol suite, this protocol communicates information about managed devices (any networked node monitored by the NMS) to the MIB (Management Information Base).

Back 7

SNMP (Simple network management protocol)

Front 8

A Linux or UNIX utility that is a standard for generating, storing, and processing messages about events on a system.

Back 8

syslog

Front 9

A tool that continually monitors traffic on a network. Monitors traffic that a single device encounters.

Back 9

Network monitor

Front 10

A tool that monitors traffic at a specific interface between a server or a client and the network. Monitors traffic pattern throughout a particular network.

Back 10

Interface monitor

Front 11

Packets that are smaller than the medium's minimum packet size.

Back 11

Runt

Front 12

Packets that exceed the medium's maximum packet size.

Back 12

Giant

Front 13

A device that handles electrical signals improperly, usually affecting the rest of the network.

Back 13

Jabber

Front 14

Frames that are not actually data frames, but aberrations caused by a device misinterpreting stray voltage on a wire.

Back 14

ghosts

Front 15

Packets missing due to an unknown protocol, unrecognized port, network noise, or some other anomaly.

Back 15

Packet loss

Front 16

Local storage of frequently needed files which allows quick access.

Back 16

Caching

Front 17

The use of any network to carry voice signals via TCP/IP protocols is known as what?

Back 17

VoIP (Voice over IP) or IP Telephony

Front 18

A computer programmed to act like an IP phone.

Back 18

Softphone

Front 19

Allows multiple participants to communicate and collaborate in a real-time meeting. Offers full duplex connections.

Back 19

VTC (video teleconferencing) or Videoconferencing

Front 20

Makes video available as stored files on a server.

Back 20

VoD (Video on Demand)

Front 21

Issues video feed directly from the source to the user as the camera captures it in real time.

Back 21

Live Streaming video

Front 22

A broadcast that is live streamed but is delayed by a few minutes to allow for editing processes and licensing concerns.

Back 22

time-shifted video

Front 23

Sets up and manage sessions between clients. Exchanges information between components of a network or system for purposes of establishing, monitoring, or releasing connections as well as controlling system operations.

Operates at the session layer.

Back 23

Signaling Protocols

Front 24

Converts analog signals into VoIP format.

Accepts PSTN lines.

Translates between different signaling protocols.

Operates at the application layer.

Back 24

MGCP (Media Gateway Control Protocol)

Front 25

A computer that manages multiple media gateways.

Facilitates Exchange of call signaling information.

Also called a softswich.

Back 25

MGC (Media Gateway Control)

Front 26

Keeps logs of networked devices.

Back 26

SNMP (Simple Network Management Protocol)

Front 27

SNMP agents receive request from the NMS on what port

Back 27

161

Front 28

What protocol enables multiple types of Layer 3 protocols to travel over any one of several connection oriented Layer 2 protocols?

Back 28

MPLS ( Multiprotocol Label Switching)

Front 29

The Priority Code Point field in a frame consists of how may bits?

Back 29

3

Front 30

This version of SNMP adds authentication, validation, and encryption for messages exchanged between managed devices and the network management console.

Back 30

SNMPv3

Front 31

A computer that provided support for multiple H.323 terminals and manages communication between them is known as what?

Back 31

MCU (multipoint control unit)

Front 32

This type of device usually has three ports: two ports to send and receive all traffic and a third port that mirrors the traffic, sending it to a computer running monitoring software.

Back 32

Packet Sniffer; Network tap

Front 33

On circuit switched portions of a PSTN, what set of standards established by the ITU is used to handle call signaling?

Back 33

SS7 (Signaling System 7)

Front 34

A server running the SIP protocol listens on what TCP/UDP port for unsecured communications?

Back 34

5060

Front 35

A server running the SIP protocol listens on what TCP/UDP port for secured communications?

Back 35

5061

Front 36

To protect credit card data and transaction what standard was put in place?

Back 36

PCI DSS (Payment Card Industry Data Security Standard)

Front 37

In H.323 which protocol below handles call or videoconference signaling?

Back 37

H.225

Front 38

In order for gateways to exchange and translate signaling and control information with each other so that voice and video packets are properly routed through a network, what intermediate device is needed?

Back 38

Media Gateway Controller (MGC)

Front 39

In a VoIP call an ip phone addresses another in a ___________ fashion.

Back 39

Unicast

Front 40

When using SIP (Session Initiation Protocol) the term used to describe end-user devices, which may include workstations, tablet computers, smartphones, or IP phones.

Back 40

user agent client

Front 41

A device that provides translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols.

Back 41

H.323 gateway

Front 42

An analog-to-digital voice conversion device.

Back 42

digital PBX; or IP-PBX

Front 43

A device that is needed to exchange and translate signaling and control information with each other so that voice and video packets are properly routed through the network is know as what?

Back 43

MGC (Media Gateway Controller)