Certification Questions

Q:

A default Frame Relay WAN is classified as what type of physicalnetwork?

A: broadcast point-to-multi point
B: broadcast multi-access
C: non broadcast multi-access
D: non broadcast multi-point

Answer

Answer : C


Explanation:


FrameRelay, ATM, and X.25 are non-broadcast multiple access (NBMA) networks. NBMA networks allow only data transfer from one computer to another over a VC or across a switching device. NBMA networks do not support multicast or broadcast traffic


FrameRelay, ATM, and X.25 are non-broadcast multiple access (NBMA) networks. NBMA networks allow only data transfer from one computer to another over a VC or across a switching device. NBMA networks do not support multicast or broadcast traffic - See more at: https://www.orbitco-ccna-pastquestions.com/CCNA-Past-Questions%3A-WAN.php#sthash.hb05ZKYs.dpuf
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Q:

Which of the following symbols indicate that a ping was successful?

A) ! B) .
C) ? D) U
 
Answer & Explanation Answer: A) !

Explanation:

Explanation: The following table explains the output generated by ping:

! – reply received

. – timed out

U – unreachable

C – congestion

? – unknown packet type

& packet lifetime exceeded

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Q:

What does a firewall?

A) Examines packets and decides which ones should be allowed to pass from one network to another. B) Maintains a table which maps the IP addresses of two network so that packets can be redirected between the networks.
C) Compares packets to virus signatures so that packets which are know to be dangerous can be identified and stopped. D) Prevents viruses from moving any further through a network
 
Answer & Explanation Answer: A) Examines packets and decides which ones should be allowed to pass from one network to another.

Explanation:
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Q:

You want to configure bindings and provider order on a Windows 2000 computer. Which tool should you use?

A) Network and Dial-up Connections folder B) Windows Explorer
C) System D) Device Manager
 
Answer & Explanation Answer: A) Network and Dial-up Connections folder

Explanation:

Use the Advanced Settings option in the Advanced menu in the Network and Dial-up Connections folder to configure bindings and provider order

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Q:

Which of the following commands will configure all the default VTY ports on a router?

A) Router#line vty 0 4 B) Router (config) #line vty 0 4
C) Router (config-if)#line console 0 D) Router(config)#line vty all
 
Answer & Explanation Answer: B) Router (config) #line vty 0 4

Explanation:

From global configuration mode, use the line vty 0 4 command to set all five default VTY lines

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Q:

You type Router#sh ru and receive a % ambiguous command error. why did you receive this message?

A) The command requires additional options or parameters B) There is more than one show command that starts with the letters ru.
C) There is no show command that starts with ru D) The command is being executed from the wrong router mode
 
Answer & Explanation Answer: B) There is more than one show command that starts with the letters ru.

Explanation:

The % ambiguous command error means that there is more than one possible show command that starts with ru. Use a question mark to find the correct command.

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Q:

Personnel Calculation Rule can contain several calculation formula depending on the definition and use of the rule.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:
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Subject: SAP HR

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Q:

You are the administrator of a Microsoft Windows NT Server 4.0 computer. The server is the PDC in your domain and also runs SQL Server 2000. The server has four processors and 1 GB of RAM.Your network consists of 500 client computers that are running Microsoft Windows Millennium Edition. Users report that when they log on in the morning their computers respond slowly and occasionally return error messages.You use System Monitor to monitor processor performance and RAM utilization. You discover that the % Total Time and % User Time counters average 90 percent and the % Privileged Time counter averages 20 percent. The Available Mbytes counter averages 800 MB. You need to improve server performance for user logons. What should you do?

A) Increase the physical RAM on the computer to 2 GB. B) Increase the virtual RAM on the computer to 4 GB.
C) Configure SQL Server to use only processors 0, 1, and 2. D) Configure SQL Server to use only processors 1, 2, and 3.
 
Answer & Explanation Answer: D) Configure SQL Server to use only processors 1, 2, and 3.

Explanation:

The system monitor clearly indicates that the processors are overloaded. We need to decide which processors we should use for SQL Server. Processor 0 is the default CPU for the I/O subsystem. Network Interface Cards (NIC) are assigned to the remaining CPUs, starting from the highest-numbered CPU. The NIC would get processor 3.
SQL Server would be using all four processors by default.

The Windows NT/2000/XP operating system use processor 0. In order to avoid the logon
problems we should not let SQL Server to use this processor. Instead SQL Server should be configured to use processor 1, 2, and 3.

Note 1: The Affinity mask is used to exclude a processor on a multiprocessor computer from processing SQL Server 2000 threads. Default is equal distribution of SQL Server 2000 processes across all processors.

Note 2: Monitoring the Processor and System object counters provides information about the CPU utilization and helps in determining whether or not a bottleneck exists. The %Total Processor Time is used on multiple CPU Severs to gauge the average activity of the processors and shows the percentage of elapsed time that a processor is busy executing a nonidle thread. Values around 100 percent on a Server computer that processes many client requests indicate that processes are queuing up, waiting for processor time, and causing a bottleneck. Such a sustained high level of processor usage is unacceptable for a server.

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