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网络工程师每日一练试题内容(2021/10/19)
试题
1: IDS设备的主要作用是()。
A.用户认证
B.报文认证
C.入侵检测
D.数据加密
试题解析与讨论:
www.cnitpm.com/st/2394227363.html试题参考答案:C
试题
2: Thede facto standard Application Program Interface (API) for TCP/IP applicationsis the “sockets” interface. Although this API was developed for (1) in the early 1960s it has also been implemented on a widevariety of no-Unix systems. TCP/IP (2) Writtenusing the sockets API have in the past enjoyed a high degree of portability andwe would like the same (3) with IPv6applications. But changes are required to the sockets API to support IPv6 andthis memo describes these changes. These include a new socket address structureto carry IPv6 (4) ,new address conversion functions,and some new socket options. These extensions are designed to provide access tothe basic IPv6 features requited by TCP and UDP applications, includingmulticasting, while introducing a minimums of change into the system and providingcomplete (5) for existing IPv4 applications.
(1)A.Windows
B.Linux
C.Unix
D.DOS
(2)A.applications
B.networks
C.protocols
D.systems
(3)A.portability
B.availability
C.calability
D.reliability
(4)A.connections
B.protocols
C.networks
D.address
(5)A.availability
B.compatibility
C.capability
D.reliability
试题解析与讨论:
www.cnitpm.com/st/2377516881.html试题参考答案:C、A、A、D、B
试题
3: IPv6链路本地单播地址的前缀为(1),可聚集全球单播地址的前缀为 (2) 。
(1)A.001
B.1111 1110 10
C.1111 1110 11
D.1111 1111
(2)A.001
B.1111 1110 10
C.1111 1110 11
D.1111 1111
试题解析与讨论:
www.cnitpm.com/st/237682449.html试题参考答案:B、A
试题
4: If two communicating entities are in different hosts connected by a network,there is a risk that PDUs will not arrive inthe order inwhich theywere sent , becausethey may traverse(70)paths through the network. If each PDUs is given a uniquenumber,andnumbersareassigned(71),thenit isa logicallysimpletaskforthereceivingentityto reorder(72 )PDUsonthebasisofsequence number.Aproblem with this scheme is that,with a(73)sequence number field, sequence number will repeat.Evidently , the maximumsequence numbermustbe(74)thanthemaximumnumber ofPDUsthatcouldbe outstandingat anytime.
(70)A.same
B.different
C.single
D.Unique
(71)A.randomly
B.equally
C. uniformly
D. Sequentially
(72)A.received
B.sent
C.transmitting
D.Forwarding
(73)A.various
B.diverse
C.finite
D.infinite
(74)A.smaller
B.greater
C.less
D.More
试题解析与讨论:
www.cnitpm.com/st/3956410898.html试题参考答案:B、D、A、C、B
试题
5:
在RMON中,实现捕获者(capture)时必须实现 ( ) 。
A、事件组(event)
B、过滤组(filter)
C、警报组(alarm)
D、主机组(host)
试题解析与讨论:
www.cnitpm.com/st/85712951.html试题参考答案:B
试题
6:
ADSL 采用多路复用技术是 (1) ,最大传输距离可达 (2) 米。
(1)A、TDM
B、FDM
C、WDM
D、CDMA
(2)A、500
B、1000
C、5000
D、10000
试题解析与讨论:
www.cnitpm.com/st/84912924.html试题参考答案:B、C
试题
7: 以下属于万兆以太网物理层标准的是( )。
A.IEEE802.3u
B.IEEE802.3a
C.IEEE802.3e
D.IEEE802.3ae
试题解析与讨论:
www.cnitpm.com/st/233813108.html试题参考答案:D
试题
8: 在没有选项和填充的情况下.IPv4数据报报头长度域的值应该为( )
A.3
B.4
C.5
D.6
试题解析与讨论:
www.cnitpm.com/st/316134647.html试题参考答案:C
试题
9:
( ) 是指按内容访问的存储器。
A、虚拟存储器
B、相联存储器
C、高速缓存(Cache)
D、随机访问存储器
试题解析与讨论:
www.cnitpm.com/st/89303075.html试题参考答案:B
试题
10:
下面的交换机命令中哪一条为端口指定VLAN? ( )
A、S1(config-if)# vlan-membership static
B、S1(config-if)# vlan database
C、S1(config-if)# switchport mode access
D、S1(config-if)# switchport access vlan 1
试题解析与讨论:
www.cnitpm.com/st/87133000.html试题参考答案:D