Section 19: Network Management

Question 1

What is Latency?

Answer 1

Time that it takes for data to reach its destination across a network

Question 2

What is Bandwidth?

Answer 2

Maximum rate of data transfer across a given network

Question 3

What is Jitter?

Answer 3

When a time delay in the sending of data packets over a network connection occurs

Question 4

What is a Granular Trap regarding SNMP?

Answer 4

Trap messages that distinguish each message as a unique message being received

Question 5

What is a Verbose Trap regarding SNMP?

Answer 5

Traps configured to contain all the information about a given alert or event as a payload

Question 6

What is a Management Information Base (MIB)?

Answer 6

The structure of the management data of a device subsystem using a hierarchical namespace containing object identifiers

Question 7

What is a Traffic Log?

Answer 7

Contains information about the traffic flows on the network

Question 8

What is an Audit Log?

Answer 8

Contains a sequence of events for a particular activity

Question 9

What is System Logging Protocol (Syslog)?

Answer 9

Used to send logging data back to a centralized server

Question 10

How many **Logging/Severity Levels ** are there?

Answer 10

0-7 (8 levels)

Question 11

What is Level 7 of the Logging Levels? What is the indication?

Answer 11

Debugging. Useful information for developers

Question 12

What is Level 6 of the Logging Levels? What is the indication?

Answer 12

Information. Normal operational message that requires no action

Question 13

What is Level 5 of the Logging Levels? What is the indication?

Answer 13

Notice. The events are unusual

Question 14

What is Level 4 of the Logging Levels? What is the indication?

Answer 14

Warning. An error will occur if action is not taken soon

Question 15

What is Level 3 of the Logging Levels? What is the indication?

Answer 15

Error. Something is preventing proper system function

Question 16

What is Level 2 of the Logging Levels? What is the indication?

Answer 16

Critical. A failure in the system’s primary application requires immediate attention

Question 17

What is Level 1 of the Logging Levels? What is the indication?

Answer 17

Alert. A condition should be corrected immediately

Question 18

What is Level 0 of the Logging Levels? What is the indication?

Answer 18

Emergency. The system has become unstable

Question 19

What is a Link State?

Answer 19

Communicates whether a given interface has a cable connected to it and a valid protocol to use for communication

Question 20

What is Duplex?

Answer 20

Occurs when devices can both communicate at the same time

Question 21

What is Half-Duplex?

Answer 21

Occurs when devices can either transmit or receiver, but cannot do both at the same time

Question 22

What are Cyclic Redundancy Checks (CRCs)?

Answer 22

Number of packets received that failed the CRC check upon receipt

Question 23

What is a Giant?

Answer 23

Any Ethernet frame that exceeds the 802.3 frame size of 1518 bytes

Question 24

What is a Runt?

Answer 24

An Ethernet frame that is less than 64 bytes in size

Question 25

What should be monitored when dealing with network devices?

Answer 25

• Temperature between 50-90 F
• Maintain a humidity range of 40-60%
• Receives clean power
• Flood-Free

Question 26

What is NetFlow Data?

Answer 26

Defines a particular traffic flow based on the different packets that share the same characteristics