What is the international standard for transmitting data over a cable sys tem?()A. PPPoEB. DOCSISC. CMTSD. AAL5

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第2题：

Dense Wavelength Division Multiplexing (DWDM) is an important innovation in optical networks.Which two descriptions best define DWDM?（）

• A、optical technology for transmitting up to 32 channels over multiple fiber strands
• B、optical technology for transmitting up to 16 channels over multiple fiber strands
• C、a WDM system that is compatible with EDFA technology
• D、a technology for transmitting more closely packed optical signals using more sophisticated transceiver designs than CWDM .

正确答案:C,D

第3题：

A technician claims to have crimped a patch cable according to the T568A standard on one end and T568B on the other. Which of the following results is to be expected?（）

• A、Since only half the leads are used, the cable will only work at 100Mbps
• B、The cable will only work at a maximum of 100Mbps. since 1Gbps only works on T568B cables.
• C、There will be no proper data continuity; the standards utilize two different wiring diagrams.
• D、The cable will only work at a maximum of 10Mbps. since 100/1000Mbps only works on T568B pure cables

正确答案:C

第4题：

What two descriptions best define DWDM？ （）

• A、 a WDM system that is compatible with EDFA technology
• B、 an optical technology for transmitting up to 16 channels over multiple fiber strands
• C、 an optical technology for transmitting up to 32 channels over multiple fiber strands
• D、 a technology for transmitting multiple optical signals using less sophisticated transceiver designthen CWDM
• E、 a technology for transmitting more closely packed optical signals using more sophisticatedtransceiver designs than CWDM

正确答案:A,E

第5题：

What kind of cable should be used to establish a trunked line between two Catalyst 2950 switches?（）

• A、a straight-through cable
• B、an EIA/TIA-232 serial cable
• C、an auxiliary cable
• D、a modem cable
• E、a cross-over cable

正确答案:E

第6题：

What facilitates the installation of the base fileset for the Data Encryption Standard （DES） Library Routines（）

• A、Fix Central
• B、AIX 6.1 disc
• C、IBM AIX Toolbox
• D、AIX Expansion Pack

正确答案:D

第7题：

What are three purposes of the RMAN “FROM” clause?（）

• A、to support PUSH-based active database duplication
• B、to support synchronization of a standby database with the primary database in a Data environment
• C、To support PULL-based active database duplication
• D、To support file restores over the network in a Data Guard environment
• E、To support file recovery over the network in a Data Guard environment

正确答案:B,C,E

第8题：

You manage a SQL Server 2005 database that contains a table with many indexes.  You notice that data modification performance has degraded over time. You suspect that some of the indexes are unused. You need to identify which indexes were not used by any queries since the last time SQL Server 2005 started. Which dynamic management view should you use？（）

• A、sys.dm fts index population
• B、sys.dm exec query stats
• C、sys. dm db index usage stats
• D、sys.dm db index physical stats

正确答案:C

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第14题：

What is the purpose of configuring the router as a PPPoE client?（）

• A、to provide VPN access over L2TP
• B、to enable PPP session from the router to the termination device at the headend for metro Ethernet connectivity
• C、for DSL connectivity and removing the need for the end - user PC to ru n the PPPoE client software
• D、for connecting the router to a cable modem, which bridges the Ethernet frames from the router to the cable modem termination system

正确答案:C

第15题：

What is the subject of the paragraph?（）

• A、international trade
• B、international transport
• C、international logistics
• D、international economy

正确答案:C

第16题：

What is the international standard for transmitting data over a cable sys tem?（）

• A、PPPoE
• B、DOCSIS
• C、CMTS
• D、AAL5

正确答案:B

第17题：

One end of a CAT5 cable is punched down following the 568B standard. The other end should beterminated using which standard to make a straight-through cable?（）

• A、568B
• B、RJ-11
• C、RJ-45
• D、568A

正确答案:A

第18题：

A data center includes a Power 750 server running AIX and Linux, and PS700 Blades running AIX. What can the customer use to update AIX and Linux, create and deploy LPARs, and set energy caps for both servers from a single console?（）

• A、PowerVM Standard Edition
• B、VMControl Standard Edition
• C、Hardware Management Console
• D、IBM Systems Director Standard Edition

正确答案:D

第19题：

You need to design a strategy to move confidential data from research users’ client computers to ATLFP2. Your solution must meet the business requirements. What should you instruct the research users to do？（）

• A、Move the encrypted data to a folder on ATLFP2 over an IPSec connection
• B、Move the encrypted data to an Encrypting File System （EFS） folder on ATLFP2 over an IPSec connection
• C、Move the encrypted data to a new server that is not a member of the domain， and then move it to ATLFP2
• D、Move the encrypted data to a compressed folder on ATLFP2 by using Web Distributed Authoring and Versioning （WebDAV） over SSL

正确答案:B

第20题：

国际民航组织（ICAO）新的飞行标准。（）

• A、New flight standard of international civil aircraft organization (ICAO).
• B、New fly standard of international civil aircraft organization (ICAO).
• C、New fly standard of international civil aviation organization (ICAO).
• D、New flight standard of international civil aviation organization (ICAO).

正确答案:D

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