更多“多选题Which two characteristics describe the UDP protocol?()Alimited error checkingBdefined timersCno recovery mechanismsDthree-way handshake”相关问题
  • 第1题:

    Which of the following correctly describe characteristics of PPP?()

    • A、Encapsulates several different types of routing protocols.
    • B、Supports only IP.
    • C、Can be used over analog circuits.
    • D、Is proprietary to Cisco
    • E、Supports error correction.

    正确答案:A,C,E

  • 第2题:

    Which three statements describe the User Datagram Protocol (UDP)?()

    • A、UDP provides delivery notification and error checking mechanisms.
    • B、UDP is faster than the Transmission Control Protocol (TCP).
    • C、UDP application examples include DNS and VoIP.
    • D、UDP is an application layer protocol.
    • E、UDP uses a best effort delivery approach.

    正确答案:B,C,E

  • 第3题:

    Which three statements describe the Transmission Control Protocol (TCP)?()

    • A、TCP is a transport layer protocol.
    • B、TCP is faster than the User Datagram Protocol (UDP).
    • C、TCP provides delivery notification and error checking mechanisms.
    • D、TCP uses a best effort delivery approach.
    • E、TCP application examples include HTTP and SMTP.

    正确答案:A,C,E

  • 第4题:

    Which two protocols use UDP as a transport protocol by default?()

    • A、Telnet
    • B、ICMP
    • C、DHCP
    • D、RIP

    正确答案:C,D

  • 第5题:

    Which two are characteristics of user-managed backup and recovery operations?()

    • A、Recovery is initiated using SQL*Plus.
    • B、Database files are backed up using SQL commands.
    • C、Database files are backed up with Recovery Manager.
    • D、Database files are restored using Recovery Manager.
    • E、Database files are backed up using operating system commands.

    正确答案:A,B

  • 第6题:

    多选题
    Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error, you decided to perform an incomplete recovery.  Which two tasks would you be required to perform in the recovery process? ()
    A

    open the database with the RESETLOGS option

    B

    open the database with the RESTRICTED option

    C

    recover all the data files to the same system change number (SCN)

    D

    recover to the required SCN only that data file in which the error occurred


    正确答案: D,A
    解析: 暂无解析

  • 第7题:

    多选题
    Which two characteristics apply to a CAS T1 interface?()
    A

    signaling travels in-band

    B

    up to 24 voice channels

    C

    up to 32 voice channels

    D

    signaling travels in time slot 17

    E

    uses Q.931 signaling protocol in a common channel


    正确答案: C,D
    解析: 暂无解析

  • 第8题:

    多选题
    Which of the following correctly describe characteristics of PPP?()
    A

    Encapsulates several different types of routing protocols.

    B

    Supports only IP.

    C

    Can be used over analog circuits.

    D

    Is proprietary to Cisco

    E

    Supports error correction.


    正确答案: C,A
    解析: 暂无解析

  • 第9题:

    多选题
    Which three protocols use UDP as a transport protocol by default?()
    A

    HTTP

    B

    TFTP

    C

    DNS

    D

    SNMP

    E

    SMTP


    正确答案: A,D
    解析: 暂无解析

  • 第10题:

    多选题
    Which three statements describe the User Datagram Protocol (UDP)?()
    A

    UDP provides delivery notification and error checking mechanisms.

    B

    UDP is faster than the Transmission Control Protocol (TCP).

    C

    UDP application examples include DNS and VoIP.

    D

    UDP is an application layer protocol.

    E

    UDP uses a best effort delivery approach.


    正确答案: D,B
    解析: 暂无解析

  • 第11题:

    多选题
    Which two characteristitcs describe the UDP protocol?()
    A

    limited error checking

    B

    defined timers

    C

    no recovery mechanisms

    D

    three-way handshake


    正确答案: D,C
    解析: 暂无解析

  • 第12题:

    多选题
    Which two of these are characteristics of the 802.1Q protocol?()
    A

    it is a layer 2 messaging protocol which maintains vlan configurations across network.

    B

    it includes an 8-bit field which specifies the priority of a frame.

    C

    it is used exclusively for tagging vlan frames and dose not address network reconvergence following switched network topology changes.

    D

    it modifies the 802.3 frame header,and thus requires that the FCS be recomputed.

    E

    it is a trunking protocol capable of carring untagged frames.


    正确答案: C,D
    解析: 暂无解析

  • 第13题:

    Which two characteristics describe the UDP protocol?()

    • A、limited error checking
    • B、defined timers
    • C、no recovery mechanisms
    • D、three-way handshake

    正确答案:A,C

  • 第14题:

    You review the failed attempts logs on an aaa server and find: "unknown network access server error."  Which failure could produce this error?()

    • A、aaa client and aaa server handshake failure
    • B、supplicant authentication failure
    • C、wrong password used by the supplicant
    • D、failure of the wireless client and aaa server handshake

    正确答案:A

  • 第15题:

    Which two characteristitcs describe the UDP protocol?()

    • A、limited error checking
    • B、defined timers
    • C、no recovery mechanisms
    • D、three-way handshake

    正确答案:A,C

  • 第16题:

    Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error, you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process?()

    • A、 open the database with the RESTRICTED option
    • B、 open the database with the RESETLOGS option
    • C、 recover to the required SCN only that data file in which the error occurred
    • D、 recover all the data files to the same system change number (SCN)

    正确答案:B,D

  • 第17题:

    Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error, you decided to perform an incomplete recovery.  Which two tasks would you be required to perform in the recovery process? ()

    • A、open the database with the RESETLOGS option
    • B、open the database with the RESTRICTED option
    • C、recover all the data files to the same system change number (SCN)
    • D、recover to the required SCN only that data file in which the error occurred

    正确答案:A,C

  • 第18题:

    多选题
    An RMAN backup job fails, displaying the following error:  ORA-19809: limit exceeded for recovery files  Your analysis shows that the Flash Recovery area is full.  Which two actions could you take to resolve the error and avoid this error in the future? ()
    A

    take the backup of the flash recovery area less frequently

    B

    increase the value of the UNDO_RETENTION initialization parameter

    C

    change the value of the WORKAREA_SIZE_POLICY initialization parameter to AUTO

    D

    change the backup retention policy to retain the backups for a smaller period of time

    E

    increase the value of the DB_RECOVERY_FILE_DEST_SIZE initialization parameter

    F

    increase the value of the CONTROL_FILE_RECORD_KEEP_TIME initialization parameter


    正确答案: C,B
    解析: 暂无解析

  • 第19题:

    多选题
    Which two are characteristics of user-managed backup and recovery operations?()
    A

    Recovery is initiated using SQL*Plus.

    B

    Database files are backed up using SQL commands.

    C

    Database files are backed up with Recovery Manager.

    D

    Database files are restored using Recovery Manager.

    E

    Database files are backed up using operating system commands.


    正确答案: A,C
    解析: 暂无解析

  • 第20题:

    多选题
    Which two are characteristics of the IS -IS protocol but not OSPF?()
    A

    forms adjacencies with all neighbors

    B

    supports demand circuit routing

    C

    provides routing support for multiple network layer protocols

    D

    utilizes SPF algorithm

    E

    provides for network scalability by allowing the network to be separated into areas

    F

    three layers of hierarchical routing


    正确答案: D,B
    解析: 暂无解析

  • 第21题:

    多选题
    Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error, you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process?()
    A

    open the database with the RESTRICTED option

    B

    open the database with the RESETLOGS option

    C

    recover to the required SCN only that data file in which the error occurred

    D

    recover all the data files to the same system change number (SCN)


    正确答案: A,D
    解析: 暂无解析

  • 第22题:

    多选题
    Which two statements are characteristics of a distance vector routing protocol?()
    A

    RIP is an example of distance vector routing protocols

    B

    Updates are periodic and include the entire routing table

    C

    Routing updates are sent only after topology changes

    D

    The protocol can be useful in hub-and-spoke and hierarchical networks

    E

    Convergence is usually faster than with link state protocols

    F

    Each router has its own view of the topology


    正确答案: E,A
    解析: 暂无解析

  • 第23题:

    多选题
    Which two protocols use UDP as a transport protocol by default?()
    A

    Telnet

    B

    ICMP

    C

    DHCP

    D

    RIP


    正确答案: C,A
    解析: 暂无解析