单选题Which of the following options best justifies why a DNS server should be run in a large network system？（）A To use ftp and telnetB To perform NFS mountsC To make /etc/hosts files unnecessaryD To reduce network traffic and save bandwidth

题目
单选题
Which of the following options best justifies why a DNS server should be run in a large network system？（）
A

To use ftp and telnet

B

To perform NFS mounts

C

To make /etc/hosts files unnecessary

D

To reduce network traffic and save bandwidth

相似考题

1.On AIX systems， where DNS resolution takes precedence over NIS， a particular process needs to resolve names using /etc/hosts first.  Which of the following processes is the best way to accomplish this without affecting the rest of the system’s name resolution？（）A、Set the NSORDER environmental variable of the environment which invokes the process to：NSORDER="local，nis，bind"B、Set the NSORDER environmental variable of the environment which invokes the process to：  NSORDER="hosts=auth，nis，bind"C、Edit /etc/netsvc.conf to add a line similar to the following： process /full/path/of/process {hosts=local，nis，dns}D、Unset NSORDER environment variable of the environment which invokes the process

2.Which of the following is BEST for providing network security?（）A、FirewallB、DMZC、SwitchD、IDS

3.Which of the following BEST describes the function of a DNS server?（）A、Secures network traffic through shared key encryption.B、Provides resolution of host names to IP addresses.C、Provides security for a network through the use of ACLs.D、Dynamically assigns IP addresses for easy client configuration.

4.In an iostat report， which of the following options best describes the value of % tm_act？（）A、 The total CPU usage for this driveB、 The bandwidth utilization of the indicated driveC、 It can best be represented by the equation （%iowait - %ioidle）D、 It can best be represented by the equation （kilobytes read/kilobytes written） *100

更多“Which of the following options best justifies why a DNS serv”相关问题

  • 第1题：

    An administrator is attempting to recover from a power failure in the data center. Which of the following is the BEST way to recover the servers？（）

    • A、 Bring up the WINS server， the DNS server， then the web server
    • B、 Bring up the web server， the time clock server， then the DHCP server
    • C、 Bring up the backup tape server， the DNS server， then the web server
    • D、 Bring up the active directory server， the DNS server， then the web server

    正确答案:D

  • 第2题：

    Which of the following protocols would BEST grant the user secure access to a remote location?（）

    • A、VPN
    • B、FTP
    • C、POP3
    • D、DNS

    正确答案:A

  • 第3题：

    In an iostat report， which of the following options best describes the value of % idle？（）

    • A、 A representation of the equation （tps/kbps）*100
    • B、 The percentage of time the disks are idle with no activity
    • C、 The percentage of time the disks are idle with no outstanding CPU requests
    • D、 The percentage of time the CPU is idle with no outstanding disk I/O requests

    正确答案:D

  • 第4题：

    Which of the following procedures best explains how to enable the NIS name resolution to take precedence over DNS on a system-wide basis?（）

    • A、 Add the following line to /etc/netsvc.conf: hosts = nis,bind,local 
    • B、 edit /etc/netsvc.conf to add the following: process /full/path/of/process /{ hosts = local,nis,dns} 
    • C、 In an NIS and DNS environment, NIS takes precedence over DNS in this environment resulting in no change 
    • D、 Change the NSORDER environment variable 

    正确答案:A

  • 第5题：

    Which of the following options indicates why it is important to talk to the user and ask appropriate questions about a software problem? （）

    • A、Software problems don't generate errors. 
    • B、The user is more knowledgeable about software. 
    • C、The system logs will provide useful information alone. 
    • D、Key information pertaining to the software may be uncovered.

    正确答案:D

  • 第6题：

    Selling the total solution includes adding services and financing options which ensures your customer will remain satisfied with their purchase. Which of the following best describes the benefits of Selling options， storage， services， and financing to your clients？（）

    • A、More face time with the executives
    • B、Enhanced credibility， higher profits， less competitive pressure
    • C、One source for elements， cleaner design， simpler support
    • D、Locks competitors out of account

    正确答案:C

  • 第7题：

    Which of the following options allows you to review the default root hints in on a DNS server that runs Windows 2012 Server？（）

    • A、You should run the dcdiag /v command at an elevated command prompt
    • B、You should open the netlogon.dns file in Notepad
    • C、You should open the cache.dns file in NotePad pass-through disk
    • D、You should run the dnscmd command from the command prompt

    正确答案:C

  • 第8题：

    单选题
    Which of the following procedures best explains how to enable the NIS name resolution to take precedence over DNS on a system-wide basis?（）
    A

     Add the following line to /etc/netsvc.conf: hosts = nis,bind,local 

    B

     edit /etc/netsvc.conf to add the following: process /full/path/of/process /{ hosts = local,nis,dns} 

    C

     In an NIS and DNS environment, NIS takes precedence over DNS in this environment resulting in no change 

    D

     Change the NSORDER environment variable 


    正确答案： D
    解析： 暂无解析

  • 第9题：

    多选题
    Which three of the following options are NOT fields found in an Ethernet frame?（）
    A

    Version

    B

    Type

    C

    Source Port

    D

    Flags

    E

    Data


    正确答案： A,E
    解析： 暂无解析

  • 第10题：

    单选题
    On a system wide basis， which of the following procedures is best to make NIS name resolution take precedence over DNS？（）
    A

    Remove the /etc/resolv.conf file

    B

    Unset the NSORDER environment variable

    C

    Add the following line to /etc/netsvc.conf： hosts=nis，bind，local

    D

    In a NIS and DNS environment， NIS takes precedence so there is nothing to change


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    In an iostat report， which of the following options best describes the value of % tm_act？（）
    A

     The total CPU usage for this drive

    B

     The bandwidth utilization of the indicated drive

    C

     It can best be represented by the equation （%iowait - %ioidle）

    D

     It can best be represented by the equation （kilobytes read/kilobytes written） *100


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    Which of the following options best justifies why a DNS server should be run in a large network system？（）
    A

    To use ftp and telnet

    B

    To perform NFS mounts

    C

    To make /etc/hosts files unnecessary

    D

    To reduce network traffic and save bandwidth


    正确答案： B
    解析： 暂无解析

  • 第13题：

    A user can no longer launch their word processing program. The program worked fine yesterday.Which of the following options could BEST be used to fix the word processing program?（）

    • A、Safe Mode
    • B、Automated System Recovery
    • C、Last Known Good Configuration
    • D、System Restore

    正确答案:D

  • 第14题：

    On a system wide basis， which of the following procedures is best to make NIS name resolution take precedence over DNS？（）

    • A、Remove the /etc/resolv.conf file
    • B、Unset the NSORDER environment variable
    • C、Add the following line to /etc/netsvc.conf： hosts=nis，bind，local
    • D、In a NIS and DNS environment， NIS takes precedence so there is nothing to change

    正确答案:C

  • 第15题：

    Which of the following "no options" controls the maximum value of mbufs？（）

    • A、mtu
    • B、sb_max
    • C、thewall
    • D、tcp_sendspace

    正确答案:C

  • 第16题：

    Which of the following options best justifies why a DNS server should be run in a large network system？（）

    • A、To use ftp and telnet
    • B、To perform NFS mounts
    • C、To make /etc/hosts files unnecessary
    • D、To reduce network traffic and save bandwidth

    正确答案:C

  • 第17题：

    A DNS server for a large network is experiencing performance problems.  Which of the following options is the best solution to fix the problem？（）

    • A、Enable NIS
    • B、Purchase a larger server
    • C、Use /etc/hosts on all of the systems
    • D、Create secondary name servers throughout the network

    正确答案:D

  • 第18题：

    Which three of the following options are NOT fields found in an Ethernet frame?（）

    • A、Version
    • B、Type
    • C、Source Port
    • D、Flags
    • E、Data

    正确答案:A,C,D

  • 第19题：

    单选题
    In an iostat report， which of the following options best describes the value of % iowait？（）
    A

     The amount of time taken to service an I/O interrupt

    B

     The percentage of time CPU（s） are waiting for page ins

    C

     The percentage of time the CPU9（s） are waiting on network

    D

     The percentage of time the CPU（s） are waiting for outstanding disk I/O requests


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    Which of the following resources would best help you when configuring IBM System x and BladeCenter together in rack cabinets？ （）
    A

    IBM System x and BladeCenter Competitive Sales Tool

    B

    Linux Cluster Sales Assistant - （LCSA）

    C

    Configuration & Options Guide - （COG）

    D

    Standalone Solutions Configuration Tool （SSCT）


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    Which of the following options indicates why it is important to talk to the user and ask appropriate questions about a software problem? （）
    A

    Software problems don't generate errors. 

    B

    The user is more knowledgeable about software. 

    C

    The system logs will provide useful information alone. 

    D

    Key information pertaining to the software may be uncovered.


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    In an iostat report， which of the following options best describes the value of % idle？（）
    A

     A representation of the equation （tps/kbps）*100

    B

     The percentage of time the disks are idle with no activity

    C

     The percentage of time the disks are idle with no outstanding CPU requests

    D

     The percentage of time the CPU is idle with no outstanding disk I/O requests


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    An administrator is attempting to recover from a power failure in the data center. Which of the following is the BEST way to recover the servers？（）
    A

     Bring up the WINS server， the DNS server， then the web server

    B

     Bring up the web server， the time clock server， then the DHCP server

    C

     Bring up the backup tape server， the DNS server， then the web server

    D

     Bring up the active directory server， the DNS server， then the web server


    正确答案： D
    解析： 暂无解析

  • 第24题：

    单选题
    On AIX systems， where DNS resolution takes precedence over NIS， a particular process needs to resolve names using /etc/hosts first.  Which of the following processes is the best way to accomplish this without affecting the rest of the system’s name resolution？（）
    A

    Set the NSORDER environmental variable of the environment which invokes the process to：NSORDER=local，nis，bind

    B

    Set the NSORDER environmental variable of the environment which invokes the process to：  NSORDER=hosts=auth，nis，bind

    C

    Edit /etc/netsvc.conf to add a line similar to the following： process /full/path/of/process {hosts=local，nis，dns}

    D

    Unset NSORDER environment variable of the environment which invokes the process


    正确答案： A
    解析： 暂无解析

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