What ensures that voice packets are given priority throughout the network so that conversations arrive intact?（）

相似题目

• You need to ensure that the sales representatives are provided with adequate NetBIOS name resolution. What should you do?（）

  A . Install WINS on the PDC emulator. B . Install WINS on servers in Atlanta and Seattle. C . Enable WINS lookup on the DNS server in Atlanta. D . Enable WINS on one domain controller in each office.

  查看最佳答案

• What are the DSL-specific factors that require additional bandwidth when supporting Voice-over-IP over an IPSec VPN?（）

  A . A voice packet is sent via multiple fixed-length cells; a portion of the last cell is padding, requiring more bandwidth. B . ADSL typically uses PPPoE encapsulation, which adds additional overhead to each voice packet. C . A voice packet is sent via multiple fixed-length cells; each cell has about 10% Layer-2 header overhead.  D . IPSec requires additional overhead for the header and hash.  E . ADSL carrier band requires additional bits to be carried over the wire to the DSL Access Concentrator.

  查看最佳答案

• What is the default value that a PBX or Cisco Unity Express uses to select a voice-mail mail box?（）

  A . Last Called Number  B . Last Redirect Number  C . Original Called Number  D . Original Redirect Number  E . Forward Redirect Number&e

  查看最佳答案

• A Catalyst 2950 needs to be reconfigured. What steps will ensure that the old configuration is erased？（）

  A . Erase flash. B . Restart the switch. C . Delete the VLAN database. D . Erase the running configuration. E . Erase the startup configuration. F . Modify the configuration register.

  查看最佳答案

• A standard user named User1 has a computer that runs Windows 7. You need to ensure that User1 can runWindows Easy Transfer.  What should you do?（）

  A . Disable User Account Control （UAC）. B . Add User1 to the Administrators group. C . Configure User1 to have a complex password. D . Copy the support folder from the Windows 7 installation media to the local hard disk drive.

  查看最佳答案

• To ensure quality， what is the maximum end-to-end transit time in milliseconds on a voice network？（）

  A .  50 B .  100 C .  150 D .  200 E .  250

  查看最佳答案

• You are designing a strategy to ensure that VPN users are able to access all internal resources.  What should you do？（）

  A .  Specify a static routing table entry on VPN1 for the Dallas network. B .  Specify a static routing table entry on VPN1 for the Seattle network. C .  Implement Internet Authentication Service （IAS） on VPN1. D .  Define a User Class option for Routing & Remote Access Clients on the DHCP Server.

  查看最佳答案

• To ensure quality, what is the maximum end-to-end transit time in milliseconds on a voice network?（）

  A . 50 B . 100 C . 150 D . 200 E . 250

  查看最佳答案

• You need to ensure that Admin2 can administer Active Directory to meet the company’s technical requirements.   What should you do？（）

  A . Add Admin2 to the Domain Admins global group. B . Add Admin2 to the Backup Operators domain local group. C . Delegate full control ofall objects in graphicdesigninstitute.com to Admin2. D . Delegate full control of all objects in the Domain Controllers organizational unit（OU）to Admin2.

  查看最佳答案

• When you enable port security on an interface that is also configured with a voice VLAN，  what is the maximum number of secure MAC addresses that should be set on the port？（）

  A . No more than one secure MAC address should be set. B . The default will be set. C . The IP phone should use a dedicated port， therefore only one MAC address is needed per port. D . No value is needed if the switchport priority extend command is configured.  E . No more than two secure MAC addresses should be set.

  查看最佳答案

• You need to ensure that the Cust_CalcData column is implemented appropriately. What should you do?（）

  A . Specify that the Cust_CalcData column must be implemented as a computed column of the table.  B . Specify that the Cust_CalcData column must be indexed using a non-clustered index. C . Specify that the Cust_CalcData column must be implemented as a column that uses a user-defined data type. D . Specify that the Cust_CalcData column must be updated by a SQL Server Agent job that runs nightly.

  查看最佳答案

• What are two major sources of delay that can be managed by QoS in voice-enabled networks？（）

  A . propagation delay B . voice packet serialization delay C . congested egress queues D . header overhead E . packets dropped because of CRC error

  查看最佳答案

• You are designing a strategy to ensure that all employees have Internet access. For each branch office, what should you do?（）

  A . Configure a DNS server to function as caching-only servers. B . Configure Internet Connection sharing on terminal servers. C . Install and configure an Internet Security and Acceleration （ISA） Server Computer. D . Install and configure a server running Routing and Remote Acess to function as a VPN server.

  查看最佳答案

• A Catalyst 2950 needs to be reconfigured. What steps will ensure that the old configuration is erased?（）

  A . Erase flash. B . Restart the switch. C . Delete the VLAN database. D . Erase the running configuration. E . Erase the startup configuration. F . Modify the configuration register.

  查看最佳答案

• What is the proper way to ensure that updates to the /etc/aliases file are seen by sendmail？（）

  A . Refresh the named daemon B . Run the alias command C . Refresh the snmpd daemon D . Run the sendmail -bi command

  查看最佳答案

• You need to ensure that database schema changes in branch offices result in the proper notifications. What should you do?（）

  A . Install Notification Services on all branch office servers， and configure Notification Services to use a local notifications database. B . Specify that all SQL Server log files must be archived and sent by e-mail to the main office.  C . Implement DML triggers that use Database Mail to send an e-mail message about the DML activity. D . Implement DDL triggers that use Database Mail to send an e-mail message about the DDL activity.

  查看最佳答案

• You need to ensure that the sales representatives are provided with adequate NetBIOS name resolution.  What should you do？（）

  A .  Install WINS on the PDC emulator. B .  Install WINS on servers in Atlanta and Seattle. C .  Enable WINS lookup on the DNS server in Atlanta. D .  Enable WINS on one domain controller in each office.

  查看最佳答案

• What are two steps that are taken when a router converts a voice signal from analog to digital form？（）

  A . sampling B . packetization C . quantization D . serializatio

  查看最佳答案

• You have a computer that runs Windows XP Professional. You need to ensure that the Administrative Tools menu appears on the Start menu. What should you do?（） 

  A . Modify the Display Properties.  B . Modify the Taskbar and Start Menu Properties. C . Switch to Classic View from Control Panel. D . Change the desktop theme to Windows Classic.&e

  查看最佳答案

• You are developing an application that will perform mathematical calculations.You need to ensure that the application is able to perform multiple calculations simultaneously. What should you do？（）

  A . Set the IdealProcessor property of the ProcessThread object. B . Set the ProcessorAffinity property of the ProcessThread object. C . For each calculation， call the QueueUserWorkItem method of the ThreadPool class. D . Set the Process.GetCurrentProcess（）.BasePriority property to High.

  查看最佳答案

• What can be used to maintain the voice quality on a link by limiting the number of calls that can be active at any given time？（）

  A .  Call Management Link Agent B .  Traffic policing C .  Call Admission Control D .  QoS Link Congestion Management E .  Oversubscription Link Detectio

  查看最佳答案

• What words can ensure that the ordinary listeners understand easily?

  查看最佳答案

• In the preparation outline, in order to ensure that you develop your ideas fully, what should be done?

  查看最佳答案