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Network + > Lesson 14 > Flashcards

Lesson 14 Flashcards

1
Q

Topic A

A

Topic A

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2
Q

To efficiently manage your network you must be able to do what

A

Monitor it

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3
Q

Network management involves which functions

A

Operations
Administration
Maintenance
Provisioning

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4
Q

What is network operations

A

Procedures that allow for the smooth running of the network and monitoring to spot problems as they arise

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5
Q

What is network administration

A

Keeping track of the assignment and utilization of devices on the network

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6
Q

What in network maintenance

A

Repairing and upgrading network components to ensure optimally functionality

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7
Q

What is network provisioning

A

assign resources to support a service

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8
Q

What is the goal of network mgmt

A

To make operations more efficient

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9
Q

Network quality includes

A

Reliability and Availability

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10
Q

What are some of the specific requirements relating to services

A

Bandwidth
Connections
Others

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11
Q

SNMP

A

Simple Network Management Protocol

Layer 7 Protocol

Collects information about network devices

Used for Diagnostics and Maintenance

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12
Q

SNMP has how many components

A

Management system (SNMP Manager)

Agent software

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13
Q

SNMP agents are installed on what

A

Servers
Routers
printers to name a few

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14
Q

What does the SNMP manager do

A

Notifies admins

Take corrective action

Store information for review

Queries agents about specific devices

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15
Q

MIBs

A

Management Information Base

Describes the structure of the management dataof a sub sytem

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16
Q

OIBs

A

Object Identifier

Identifies a variable that can be read or set via SNMP

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17
Q

Name the SNMP operations

A

Get - REquest to retrieve the value of a variable or list of variable

Trap - enables an agent to notify the management station of significant events by way of unsolicited SNMP message

Walk - essentially a GET operation performed on the MIB node that has child nodes or column nodes. It performs the OID walk through the child nodes or column nodes

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18
Q

Which is the safest version of SNMP

A

V3

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19
Q

Describe the SNMP versions

A

V1 - developed 1988

V2 - developed 1993 and added serveral protocol operations and initiatil security measures

V3 developed 2002 Added security and remote configuaration capabilities. Addfed authentication privacy and access control

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20
Q

Which SNMP version added Authentication, privacy and access control

A

V3

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21
Q

Which port does SNMP use

A

UDP 161 and 162

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22
Q

What captures and analyzes traffic, creates logs ad alerts admins

A

Network monitoring tools

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23
Q

What are some things network monitoring tools can look for

A

Congestion

Constructing baselines

Determine upgrade needs

Generate reports

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24
Q

Name some network monitoring tools

A 
LAN monitor
QoS monitor
Bandwith monitor
WAN monitor
SIEM monitor
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25
Q

Throughput tester

A

Measures throughouot and capacity.

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26
Q

Which tool sends large packets from a source to destination to determine the time it takes to transmit

A

Throughput tester

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27
Q

Which tools measures connectivity

A

Ping

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28
Q

Name the different ping tools

A 
Ping
Path Ping
Tracert
Netstat
Wireshark
Nagios
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29
Q

What are the categories of network monitoring tools

A

Status
Traffic
Route

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30
Q

What are some status monitoring tools

A

Ping

nsloookup

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31
Q

Name a traffic monitoring tool

A

ping

iptrace

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32
Q

What is a route monitoring tool

A

tracert

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33
Q

Network Traffic Analysis

A

s

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34
Q

Network Diagnostics

A

d

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35
Q

System Performance Monitors

A

Monitors state of services/daemons, processes and resources

Tracks one or more counters

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36
Q

Which monitor watches services /daemons/resources

A

System Performance Monitors

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37
Q

Name some counters monitored by system performance monitors

A

Bandwidth counters

Storage counter

Network device CPU counter

Network device memory

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38
Q

Can system monitoring tools monitor NIC status

A

Yes

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39
Q

Describe the Syslog

A

Process of logging messages or data logs

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40
Q

What is a log file

A

REcord of actions and events performed on an operating system

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41
Q

Which file do you need to look at if you want to assess the operating system

A

Log file

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42
Q

What are the types of log files

A

System
General
History

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43
Q

System log files

A

Predetermined by the OS and are a record of events logged by the OS

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44
Q

General log files

A

Contains information about device changes, installation/uninstallation of device drivers and any other system changes

45
Q

History log files

A
  • Types of log
  • The event of the occurrence
  • The name of the user who was logged on at the time of the event
  • Keywords
  • What category the event belongs to
46
Q

Describe a network analyzer

A

Packet or protocol analyzer or packet sniffer

Hardware or software

Intercepts/Logs/Analyzes data and packets across the network

ID ports

47
Q

Can network analyzer be used on LANs and DSL

A

Yes

48
Q

What is log management

A

Process of dealing with computer log messages

Can be used to monitor network health and troubleshoot issues

49
Q

Log management Tools

A

give you more control and options for filtering and managing logs

50
Q

Fault Tolerance

A

ability of a device to withstand a foreseeable component failure and continue to provide an acceptable level of service

51
Q

Name some fault tolerance measures

A

Power
Disks and storage
Network components

52
Q

Describe Alerts

A

notification that sent to a preconfigured user

Alert conditions are configurable

53
Q

Power monitoring tools

A

Monitors the power that supplies the network

54
Q

What is DCIM

A

Data Center Infrastructure Management

Extends traditional data center management functions

Includes physical assets and resources found in the facilities and IT Domains

55
Q

Rack monitoring

A

sensors to monitor the ambient conditions in a rack system

Temp
Humidity

56
Q

Interface monitoring

A

Feature usually built into a switch router or server

Usually monitors TX/RX/Packet errors/Link Status

57
Q

Wireless Analyzers

A

Used to analyze the physical aspects of wireless networks

Includes:
Spectrum analysis
Finding WAPs
Reporting SSIDs
Channel Usage 
Signal strength
Noise Sources
58
Q

Wireless Heat Maps

A

Coverage maps

Red = good coverage
Blue = bad coverage
59
Q

Topic B

A

Topic B

60
Q

What are the three types of configurations

A

Static
Running
Planned

61
Q

Describe configuration management

A

focuses on maintaining a database of the hardware and software components on a network

62
Q

Admins should have access to these types of documents

A 
Network diagrams
Device Information 
Utilization Statistics
Policies and procedures
Graphing 
Vendor docmentation
63
Q

Physical Network Diagram

A

Graphical representation of gthe location of all network devices and endpoints and depicts their connection with one another

Does not show the exact location of devices

64
Q

Which diagram depicts routers switches servers workstations firewall WAPs cable mgmt. info and CSUDSU units

A

Physical Network diagram

65
Q

Describe a wiring diagram

A

Combination of a floor plan and a physical network topology diagram

66
Q

Logical Network Diagram

A

Documents the protocols and application that control the flow of network traffic

Shows IP addresses, FQDN, Server application type, Trust relationship[s and routing topology

67
Q

What is Asset Management

A

Policies about financial and contractual specifications of all the hardware and software components in the inventory

68
Q

Critical Hardware Inventory is

A

Provides insurance documentation and helps determine what you need to rebuild the network

Standard Workstations
Specialty Workstations
Basic servers
Connectivity hardware
Backup hardware
69
Q

Critical Software Inventory is

A

Provides insurance documentation and helps determine what you need to rebuild the network

Operating System Software 
Productivity and Application Software
Maintenance Utilities
Backup Documentation
Overall Asset Inventory
70
Q

What is a network policy

A

Formalized statement that defines network functions and expectations for users, mgmt. and IT personnel

71
Q

Name the types of a network policy

A

Policy Statement
Standards
Guidelines
Procedures

72
Q

Outlines the plan for individual components

A

Policy statement

73
Q

Defines how to measure the level of adherence to the policy

A

Standard

74
Q

Suggestion, recommendations or best practices for how to meet the policy standard

A

Guideline

75
Q

Step by Step instructions

A

Procedures

76
Q

Legal issues affect which groups

A

Employees
Customers
Business Partners

77
Q

Name the common business document to consider for the networek

A

SLA
MOU
MLA
SOW

78
Q

SOW

A

Statement of Work

79
Q

MLA

A

Master Liciense Agreement

80
Q

MOU

A

Memorandum of Understanding

81
Q

SLA

A

Service Level Agreement

82
Q

Network baseline is

A

Performance statistics under normal operating conditions

83
Q

Describe steps in the change management process

A
  • Identify the problem
  • Document the rationale for the change
  • Create a change request
  • Work through the approval process
  • Plan the change
  • Implement the change
  • Document
84
Q

Topic C

A

Topic C

85
Q

QoS

A

Quality of Service is a set of parameters that controls the quality provided todifferent types of network traffic

86
Q

What are the QoS parameters

A

Max delay

Signal Loss

Noise

Bandwidth Priority

CPU usage

87
Q

Are QoS parameters agreed to by the TX (ISP) and RX (Subscriber)ends

A

Yes and this is documented in a SLA

88
Q

The QoS SLA defines

A

Parameters

Remedial Measures

Penalties

89
Q

Are FTP and Telnet sensitive to packet loss

A

Yes

90
Q

Are FTP and Telnet tolerant to data delays

A

Yes

91
Q

Name some QoS parameters

A 
Bandwidth
Latency
Jitter
Packet Loss
Echoes
92
Q

Latency Sensitivity

A

Being sensitive to packets being delayed during transmission

n

93
Q

Name some Latency sensitive applications

A

VOIP
Video Teleconferencing
Real Time Applications

94
Q

What tricks can be used to reduce latency and add efficiency

A

QoS
Load Balancing
Traffic Shaping
Caching

95
Q

What is traffic shaping

A

Mechanism in QoS for introducing some amount of delay in traffic that exceeds an administratively defined rate

It smooths down traffic bursts

Traffic is buffered and released after a specific time interval

96
Q

Does traffic shaping drop packets

A

No

97
Q

Where is traffic shaping implemented

A

On the outbound interface of a device

98
Q

Where is traffic policing implemented

A

Both outbound and inbound interfaces

99
Q

What is traffic policing

A

governing/regulating the packet flow within standards and limits

100
Q

What happens to packets not conforming to the SLA

A

They are dropped or marked to a lower precedent

101
Q

Packet shaper

A

aka Traffic shaper is the mechanism that enable traffic shaping

Delays metered traffic by using algorithms

102
Q

Load Balancing

A

dividing work amongst devices on the network

103
Q

Are load balancers stand alone devices

A

Yes

104
Q

CARP

A

Common Address Redundancy Protocol

Allows a number of devices to be grouped together to use a single virtual NIC

105
Q

High Availability

A

Rating that expresses how closely devices approach the goal of providing dat availability

Five nines
(99.999%)

106
Q

Caching Engines

A

Application or service that stores or indexes data in order to provide faster responses to requests

107
Q

High Bandwidth Applications

A

software that needs a lot of bandwidth

VOIP
HDTV
Real Time Video
Multimedia

108
Q

What can effect QoS implementation

A

Packet classification

Policing

Resource Allocation`

109
Q

Completed

A

Completed

Network + (13 decks)

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