Error detection schemes check errors in the data packets by reading which field frame IDs?()A.MTUB.PDUC.FCSD.FlagE.MACF.BRI

第1题：

第2题：

Which frame field do error detection schemes view to perform their function?（）

• A、ERR
• B、Flag
• C、FCS
• D、MTU
• E、MAC
• F、PDU

第3题：

Which of the following correctly describe steps in the OSI data encapsulation process?（）

• A、Transport layer divides a data stream into segments & adds reliability & flow control information
• B、Data link layer adds physical source & destination address & an FCS to the segment
• C、Packets are created when the network layer encapsulate a frame with source & destination host address& protocol related control information
• D、Packets are created when the network layers adds layers 3 address & control information to a segment
• E、The presentation layer translated bits into bits into voltages for transmission across the physical link

第4题：

Which Ethernet field is used to differentiate between the FCoE frame and the FIP frame？（）

• A、 Ethernet FCS
• B、 Source address
• C、 Destination address
• D、 EtherType
• E、 Protocol type

第5题：

Error detection schemes check errors in the data packets by reading which field frame IDs?（）

• A、MTU
• B、PDU
• C、FCS
• D、Flag
• E、MAC
• F、BRI

第6题：

Telneting from any machine on the network is taking 75 seconds.  Which of the following procedures should be checked to correct the error?（）

• A、 Check  /etc/hosts. 
• B、 Check  /etc/resolv.conf. 
• C、 Check for packet errors. 
• D、 Check to see if the master server is up.

第7题：

You received the following error：   ORA-01578： ORACLE data block corrupted   （file # %s， block # %s）   Which file will you check to view additional information regarding the cause of this error？（）

• A、the alert log file and the trace files
• B、 the redo log files
• C、 the control file
• D、 the change tracking file

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第13题：

As a critical part of the design for the Enterprise Campus network， which of the following two aretrue concerning intrusion detection and prevention solution？ （）

• A、 IDS is capable of both inline and promiscuous monitoring， while IPS is only capable ofpromiscuous monitoring
• B、 IDS will stop malicious traffic from reaching its intended target for certain types of attacks.
• C、 IPS processes information on Layer 3 and 4 as well as analyzing the contents and payload ofthe packets for more sophisticated embedded attacks （Layers 3 to 7）
• D、 IPS inspects traffic statefully and needs to see both sides of the connection to function properly
• E、 IDS placement at the perimeter of Data Center outside the firewall generates many warningsthat have relatively low value because no action is likely to be taken on this information

第14题：

Which of the following correctly describe steps in the OSI data encapsulation process?（）

• A、The transport layer divides a data stream into segments and may add reliability and flow control information.
• B、The data link layer adds physical source and destination addresses and an FCS to the segment.
• C、Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.
• D、Packets are created when the network layer adds Layer 3 addresses and control information to a segment.
• E、The presentation layer translates bits into voltages for transmission across the physical link.

第15题：

A PC on a network segment sends data to another PC on a different segment.Which of the following correctly describe the correct order of how this data will be encapsulated?（）

• A、Data, Frame, Packet, Segment, Bit
• B、Data, Frame, Segment, Packet, Bit
• C、Data, Packet, Frame, Segment, Bit
• D、Data, Packet, Segment, Frame, Bit
• E、Data, Segment, Frame, Packet, Bit
• F、Data, Segment, Packet, Frame, Bit

第16题：

The Company core switches use 802.1Q trunks to connect to each other.  How does 802.1Q  trunking keep track of multiple VLANs？ （）

• A、 It tags the data frame with VLAN information and recalculates the CRC value
• B、 It encapsulates the data frame with a new header and frame check sequence
• C、 It modifies the port index of a data frame to indicate the VLAN
• D、 It adds a new header containing the VLAN ID to the data frame
• E、 None of the other alternatives apply

第17题：

An administrator receives an error when attempting to execute a WebSphere Commerce command and decides to take the following steps to troubleshoot the problem：   Check to see if the request was processed by the WebSphere plug-in but was never received by the WebSphere Application Server  Check for Java errors from EJBs and servlets  Trace WebSphere Commerce Server subsystems and commands  Which of the following files should the administrator check to accomplish these steps？（）

• A、error.log
• B、trace.log
• C、http_plugin.log
• D、servlet.log
• E、SystemOut.log

第18题：

Which data dictionary views displays the error information related to a data file， when an internal read fails on that file？（）

• A、V$DATAFILE
• B、V$DATAFILE_HEADER
• C、DBA_DATA_FILES
• D、V$DBFILE
• E、V$DATAFILE_ERRORS

第19题：

Examine the list of variables and their data types：  AME DATA Type  TS， TS1 TIMESTAMP  TSZ TIMESTAMP WITH TIME ZONE  TLZ TIMESTAMP WITH LOCAL TIME ZONE  IYM INTERVAL YEAR TO MONTH  IDS， IDSI INTERVAL YEAR To SECOND   Which three expressions using the new data and time data types are valid？（）

• A、IDS* 2
• B、TS + IYM
• C、TS –TSI
• D、IDS – TS
• E、IDS + IYM

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