()是IETF Internet Engineer Task Force完善的安全标准,它把几种安全技术结合在一起形成一个较为完整的体系,通过对数据加密、认证、完整性检查来保证数据传输的可靠性、私有性和保密性。
第1题:
During UMS rounds, a duty engineer notices that the fuel oil overflow observation glass is full of oil. Should he ____.
A.Stop all F.O. transfers immediately, and inform the chief engineer.
B.Make a sounding of the F.O. overflow tank and decide if there is enough capacity to leave it until the following morning.
C.Call a motorman and have him sound the F.O. overflow tank periodically during the night.
D.start the F.O. purifier
第2题:
A.
B.
C.
D.
E.
F.
第3题:
L2F是()提出的一个隧道安全协议。
第4题:
Router R1 sits at an Enterprise branch office, using both the Internet and a leased line to another Enterprise router for its two connectivity options back into the rest of the Enterprise network. The engineer planning for this branch decided to use the leased line for all Enterprise traffic, unless it fails, in which case the Internet connection should be used to pass traffic to the Enterprise. Which of the following is most likely to be useful on the branch router?()
第5题:
在linux系统中,要增加一个在8月10日上午10:00运行的任务/tmp/task.sh,应执行的命令是()。
第6题:
为了解决SLIP存在的问题,Internet IETF成立了一个小组来制定点到点的数据链路协议的Internet标准,该标准被命名为()。
第7题:
Sigtran是由IETF组织制订的
第8题:
A network engineer wants to allow a temporary entry for a remote user with a specific usename and password so that the user can access the entire network over the internet.which ACL can be used?()
第9题:
256位
128位
64位
512位
第10题:
第11题:
the second engineer had got into the engine room
the second engineer got into the engine room
has the second engineer got into the engine room
did the second engineer get into the engine room
第12题:
VLAN
移动IP
L2TP
WAP
第13题:
Open Shortes t Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF).Which two statements best describe the OSPF link - state routing pro tocol?()
A. OSPF sends updates every 10 seconds
B. OSPF sends triggered updates when a network change occurs
C. When a link state is changed, the router that detected the change creates a link - state advertisement (LSA) and propagates it to all OSPF devices using the 224.0.0.6 multicast address
D. OSPF sends summaries of individual link- state entries every 30 minutes to ensure LSDB synchronization
第14题:
A. reflexive
B. extended
C. standard
D. dynamic
第15题:
()是在IETF(Internet工程任务组)努力下制定的一个标准协议。该协议能够允许移动终端与Internet上的其他主机进行通信。通过采用这一机制,即使移动终端正在移动,只要这些主机连接到Internet上,也能与其他主机进行通信。
第16题:
Open Shortes t Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF). Which two statements best describe the OSPF link - state routing pro tocol?()
第17题:
IPv6是由互联网工程任务组(Internet Engineering Task Force,IETF)设计的下一代IP协议,IPv6采用的地址长度是()
第18题:
IPSec(IPSecurity)是IETF制定的为保证在Internet上传送数据的安全保密性能的三层隧道加密协议。它有()和()两种工作方式。
第19题:
Internet工程任务组(IETF) 在1992年6月提出制定下一代的IP协议,简称为()协议。
第20题:
As an experienced Network Engineer, you are responsible for network connectivity and system configuration. Which of the following protocols will be supported by Cisco Nonstop Forwarding (NSF)?()
第21题:
是推动INTERNET标准规范制定的最主要的组织
主要组成有:互联网架构委员会(INTERNET ARCHITECTURE BOARD-IAB)
主要组成有:IETF工作组(IETF WORKING GROUP)
主要组成有:互联网工程指导组(INTERNET ENGINEERING STEERING GROUP-IESG)
第22题:
IPSec
L2TP
VPN
GRE
第23题:
at /tmp/task.sh 10:00 08/10/05
at –f /tmp/task.sh 10:00 08/10/05
at –f /tmp/task.sh 10:00pm 08/10/05
at /tmp/task.sh 10:00am 08/10/05