Deck 8: Managing a Local Area Network

Question 1

A voltgague is a tool that measures the characteristics of an electric current.

Answer 1

False

Question 2

Using additional redundant hardware is known as fault intolerance.

Answer 2

False

Question 3

A protocol analyzer can operate in stealth mode, meaning that instead of ignoring packets intended for other devices, as is the usual case, the analyzer captures all packets that flow across the network.

Answer 3

False

Question 4

A central processing unit (CPU) that consistently runs at 90 percent capacity or higher would indicate that the server is overloaded.

Question 5

All hardware and software vendors must support all levels of RAID.

Question 6

An uninterruptible power supply also serves as a power conditioner , which keeps intense spikes of electrical current, common during thunderstorms, from reaching the server.

Question 7

Each is a common level of RAID except _____.

A) RAID 0
B) RAID 1
C) RAID 5
D) RAID 1000

Question 8

The Simple Network Management Protocol (SNMP) is part of the TCP/IP protocol suite that allows computers and network equipment to gather data about network performance.

Question 9

The RAID level that uses multiple drives but is not fault-tolerant is _____.

A) RAID 1
B) RAID 0
C) RAID 53
D) RAID 103

Question 10

The technology that does not protect against a disk control work card failure is _____.

A) disk duplexing
B) RAID
C) disk mirroring
D) ECC

Question 11

A time domain reflectometer (TDR) is a sophisticated device that sends a signal down a cable and then records the return of the signal.

Question 12

Parity error checking is less efficient than error correction code (ECC).

Question 13

Each is a preventive measure that can be taken to make a server as stable as possible except _____.

A) perform timely backups
B) provide constant electrical power
C) use passwords
D) protect from viruses

Question 14

RAID 0 striping partitions the storage space of each hard drive into smaller sections known as _____.

A) stripes
B) segments
C) sectors
D) tracks

Question 15

Retrieving a page from a paging file on a hard drive is called a soft page fault.

Question 16

Most businesses create two sets of backup tapes.

Question 17

A soft page fault occurs when the page was moved to another area of RAM and then must be retrieved back into the area of RAM used for processing.

Question 18

When a defective network interface card (NIC) will not stop sending network signals, this is known as "jabbering."

Question 19

Managing a local area network involves taking the necessary proactive steps to try to prevent problems as well as constantly monitoring the network for any symptoms that may indicate a problem.

Question 20

Anytime the contents of a file are changed, the archive bit is set, meaning this modified file now needs to be backed up.

Question 21

Each RAID level is supported today by hardware and software vendors except _____.

A) RAID 0
B) RAID 1
C) RAID 2
D) RAID 5

Question 22

Disk ____________________ has separate disk controller cards for each hard drive.

Question 23

The RAID level that uses error correction code (ECC) is _____.

A) RAID 0
B) RAID 1
C) RAID 2
D) RAID 3

Question 24

Disk ____________________ involves having multiple drives in the file server that are all connected to the same disk controller card.

Question 25

_____ divides the parity data across all drives instead of using a separate drive to hold the parity error-checking information.

A) RAID 1
B) RAID 5
C) RAID 50
D) RAID 55

Question 26

Each network problem can be identified by network monitors except _____.

A) late collisions
B) user logins
C) jabber
D) negative frame sequence checks

Question 27

Server random access memory (RAM) is divided into _____.

A) paging files
B) page faults
C) page frames
D) soft page faults

Question 28

Backup software can internally designate which files have already been backed up by setting a(n) _____ bit in the properties of the file.

A) archive
B) backup
C) restore
D) directory

Question 29

When using Simple Network Management Protocol (SNMP), _____ are loaded onto each network device that will be managed.

A) management information bases (MIB)
B) management stations
C) SNMP triggers
D) software agents

Question 30

The main carrier of computer viruses today is _____.

A) floppy diskettes
B) Internet
C) spreadsheets
D) e-mail

Question 31

Each is an important step to reduce the risk of virus infection except _____.

A) constantly update new virus definition files
B) be suspicious of all e-mail attachments
C) keep current backup copies of all important data
D) run virus scan once per moth

Question 32

A _____ virus changes its appearance each time it replicates, making it especially difficult to detect.

A) stealth
B) trojan
C) polymorphic
D) macro

Question 33

Each is an optical disc technology except _____.

A) CD-R
B) DVD-R
C) DVD+RW
D) DVD+CRW

Question 34

Because the ____________________ plays such an important role in a LAN, managing it is one of the most important jobs for a network manager.

Question 35

A stripe can be as small as ____________________ or as large as several megabytes.

Question 36

Fault-tolerant server hard drives are based on the standard known as ________________________________________.

Question 37

An uninterruptible power supply (UPS) performs each task except _____.

A) power conditioning
B) surge protection
C) reboot server
D) disconnect users and shut down server

Question 38

Each is one of the basic types of backups except _____.

A) monthly backup
B) full backup
C) differential backup
D) incremental backup

Question 39

If the total amount of free hard disk space on a file server is less than _____ percent, then additional space should be found.

A) 90
B) 75
C) 50
D) 20

Question 40

Multiple hardware RAID arrays can be combined into a singel array group known as _____.

A) MultiRAID
B) RAID Group 250
C) dual-level RAID
D) RAID consolidation

Question 41

Tell how an archive bit is used in making backups.

Question 42

A(n) _________________________ is a computer program that instructs a computer to perform an operation without the user's knowledge or consent.

Question 43

Explain the difference between disk mirroring and disk duplexing that is used in RAID level 1.

Question 44

RAID 5 parity data is always stored on a(n) ____________________ drive.

Question 45

Explain how a file server manages random access memory (RAM) through paging.

Question 46

Tell the difference between a macro virus, a polymorphic virus, and a stealth virus.

Question 47

A(n) ______________________________ is an external device located between the outlet for electrical power and the server whose primary purpose is to continue to supply power to the server in the event of an electrical power failure.

Question 48

Explain how Simple Network Management Protocol (SNMP) works.

Question 49

Multiple hardware RAID arrays that are combined into a single array group are known as _________________________.

Question 50

Many network managers perform a full backup once a week and a(n) ____________________ backup once a day.