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Lesson 14 Flashcards

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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
Throughput tester
Measures throughouot and capacity.
26
Which tool sends large packets from a source to destination to determine the time it takes to transmit
Throughput tester
27
Which tools measures connectivity
Ping
28
Name the different ping tools
``` Ping Path Ping Tracert Netstat Wireshark Nagios ```
29
What are the categories of network monitoring tools
Status Traffic Route
30
What are some status monitoring tools
Ping | nsloookup
31
Name a traffic monitoring tool
ping | iptrace
32
What is a route monitoring tool
tracert
33
Network Traffic Analysis
s
34
Network Diagnostics
d
35
System Performance Monitors
Monitors state of services/daemons, processes and resources Tracks one or more counters
36
Which monitor watches services /daemons/resources
System Performance Monitors
37
Name some counters monitored by system performance monitors
Bandwidth counters Storage counter Network device CPU counter Network device memory
38
Can system monitoring tools monitor NIC status
Yes
39
Describe the Syslog
Process of logging messages or data logs
40
What is a log file
REcord of actions and events performed on an operating system
41
Which file do you need to look at if you want to assess the operating system
Log file
42
What are the types of log files
System General History
43
System log files
Predetermined by the OS and are a record of events logged by the OS
44
General log files
Contains information about device changes, installation/uninstallation of device drivers and any other system changes
45
History log files
- 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
Describe a network analyzer
Packet or protocol analyzer or packet sniffer Hardware or software Intercepts/Logs/Analyzes data and packets across the network ID ports
47
Can network analyzer be used on LANs and DSL
Yes
48
What is log management
Process of dealing with computer log messages Can be used to monitor network health and troubleshoot issues
49
Log management Tools
give you more control and options for filtering and managing logs
50
Fault Tolerance
ability of a device to withstand a foreseeable component failure and continue to provide an acceptable level of service
51
Name some fault tolerance measures
Power Disks and storage Network components
52
Describe Alerts
notification that sent to a preconfigured user Alert conditions are configurable
53
Power monitoring tools
Monitors the power that supplies the network
54
What is DCIM
Data Center Infrastructure Management Extends traditional data center management functions Includes physical assets and resources found in the facilities and IT Domains
55
Rack monitoring
sensors to monitor the ambient conditions in a rack system Temp Humidity
56
Interface monitoring
Feature usually built into a switch router or server Usually monitors TX/RX/Packet errors/Link Status
57
Wireless Analyzers
Used to analyze the physical aspects of wireless networks ``` Includes: Spectrum analysis Finding WAPs Reporting SSIDs Channel Usage Signal strength Noise Sources ```
58
Wireless Heat Maps
Coverage maps ``` Red = good coverage Blue = bad coverage ```
59
Topic B
Topic B
60
What are the three types of configurations
Static Running Planned
61
Describe configuration management
focuses on maintaining a database of the hardware and software components on a network
62
Admins should have access to these types of documents
``` Network diagrams Device Information Utilization Statistics Policies and procedures Graphing Vendor docmentation ```
63
Physical Network Diagram
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
Which diagram depicts routers switches servers workstations firewall WAPs cable mgmt. info and CSUDSU units
Physical Network diagram
65
Describe a wiring diagram
Combination of a floor plan and a physical network topology diagram
66
Logical Network Diagram
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
What is Asset Management
Policies about financial and contractual specifications of all the hardware and software components in the inventory
68
Critical Hardware Inventory is
Provides insurance documentation and helps determine what you need to rebuild the network ``` Standard Workstations Specialty Workstations Basic servers Connectivity hardware Backup hardware ```
69
Critical Software Inventory is
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
What is a network policy
Formalized statement that defines network functions and expectations for users, mgmt. and IT personnel
71
Name the types of a network policy
Policy Statement Standards Guidelines Procedures
72
Outlines the plan for individual components
Policy statement
73
Defines how to measure the level of adherence to the policy
Standard
74
Suggestion, recommendations or best practices for how to meet the policy standard
Guideline
75
Step by Step instructions
Procedures
76
Legal issues affect which groups
Employees Customers Business Partners
77
Name the common business document to consider for the networek
SLA MOU MLA SOW
78
SOW
Statement of Work
79
MLA
Master Liciense Agreement
80
MOU
Memorandum of Understanding
81
SLA
Service Level Agreement
82
Network baseline is
Performance statistics under normal operating conditions
83
Describe steps in the change management process
- 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
Topic C
Topic C
85
QoS
Quality of Service is a set of parameters that controls the quality provided todifferent types of network traffic
86
What are the QoS parameters
Max delay Signal Loss Noise Bandwidth Priority CPU usage
87
Are QoS parameters agreed to by the TX (ISP) and RX (Subscriber)ends
Yes and this is documented in a SLA
88
The QoS SLA defines
Parameters Remedial Measures Penalties
89
Are FTP and Telnet sensitive to packet loss
Yes
90
Are FTP and Telnet tolerant to data delays
Yes
91
Name some QoS parameters
``` Bandwidth Latency Jitter Packet Loss Echoes ```
92
Latency Sensitivity
Being sensitive to packets being delayed during transmission | n
93
Name some Latency sensitive applications
VOIP Video Teleconferencing Real Time Applications
94
What tricks can be used to reduce latency and add efficiency
QoS Load Balancing Traffic Shaping Caching
95
What is traffic shaping
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
Does traffic shaping drop packets
No
97
Where is traffic shaping implemented
On the outbound interface of a device
98
Where is traffic policing implemented
Both outbound and inbound interfaces
99
What is traffic policing
governing/regulating the packet flow within standards and limits
100
What happens to packets not conforming to the SLA
They are dropped or marked to a lower precedent
101
Packet shaper
aka Traffic shaper is the mechanism that enable traffic shaping Delays metered traffic by using algorithms
102
Load Balancing
dividing work amongst devices on the network
103
Are load balancers stand alone devices
Yes
104
CARP
Common Address Redundancy Protocol Allows a number of devices to be grouped together to use a single virtual NIC
105
High Availability
Rating that expresses how closely devices approach the goal of providing dat availability Five nines (99.999%)
106
Caching Engines
Application or service that stores or indexes data in order to provide faster responses to requests
107
High Bandwidth Applications
software that needs a lot of bandwidth VOIP HDTV Real Time Video Multimedia
108
What can effect QoS implementation
Packet classification Policing Resource Allocation`
109
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