教师招聘(教育理论+公共基础)-通用版
下列有关Cisco IOS ping指示符的陈述哪一项是正确的（）A、“表示!”ping操作不成功，设备可能无法找到DNS服务器。B、“U可能表示沿途的某个路由器不包含通往目的地址的路由，而且”ping操作不成功C、“表示.”ping操作是成功的，但是响应时间比正常情况下长。D、“和.”“的组合表示沿途的某个路由器没有通往目的地址的路由并发回了一个!”ICMP无法到达消息。
题目
下列有关Cisco IOS ping指示符的陈述哪一项是正确的（）
- A、“表示!”ping操作不成功，设备可能无法找到DNS服务器。
- B、“U可能表示沿途的某个路由器不包含通往目的地址的路由，而且”ping操作不成功
- C、“表示.”ping操作是成功的，但是响应时间比正常情况下长。
- D、“和.”“的组合表示沿途的某个路由器没有通往目的地址的路由并发回了一个!”ICMP无法到达消息。
相似问题和答案
第1题：
A、使用“show history”命令
B、在提示符下直接输入?
C、在提示符下直接按下Tab键
D、使用“help?”命令
第2题：
Cisco7600路由器系统的操作系统是（）
- A、IOS
- B、IOS-XR
- C、IOS或IOS-XR
- D、CATOS
正确答案:A
第3题：
A.可以在系统运行过程中从高压侧加注
B.容器倒置可使低压的制冷剂蒸气加注到系统中
C.上述A和B两项陈述皆正确
D.上述A和B两项陈述皆错误
第4题：
What are two security features of the Cisco Secure Router 500 Series？ （）
- A、Cisco Intrusion Prevention System
- B、Cisco IOS Software Firewall
- C、Cisco IOS Easy VPN
- D、Cisco Unified Wireless Networking
- E、Cisco ASA Hardware Firewall
正确答案:A,B
第5题：
What type of services are provided by the Cisco IOS gateways in a VoIP network with Cisco CallManager functionality？ （）
- A、Cisco IOS gateways provide services such as address translation and network access control for the devices on the networl
- B、Cisco IOS gateways provide services such as bandwidth management and accounting
- C、Cisco IOS gateways provide media termination and signal translation between the public switched telephone network （PSTN） and IP networks
- D、Cisco IOS gateways provide zone management for all registered endpoints in the network
正确答案:C
第6题：
有关压缩机过热的原因，下列陈述哪一项最为正确（）
- A、低电压运转
- B、冷凝器散热不良
- C、启动频繁
- D、以上皆是
正确答案:D
第7题：
Which of the following is true about the Cisco IOS-IPS functionality？ （）
- A、 The signatures available are built into the IOS code.
- B、 Toupdate signatures youneed to install a new IOS image
- C、 To activate new signatures you download a new Signature DefiitionFile （SDF） from Cisco’s web site
- D、 Loading and enabling selected IPS signatures is user configurable
- E、 Cisco IOS onlyprovides Intrusion Detection functionality
- F、 Cisco IOS-IPS requires a network module installed in your router running sensor software
正确答案:C,D
第8题：
After making some network changes you power off and then power on your Cisco router named VE1. What sequence of events occurs when VE1 is powered up?
A. Perform. POST, locate configuration statements, apply configuration statements, locate Cisco IOS software, and load Cisco IOS software.
B. Locate Cisco IOS software, load Cisco IOS software, locate configuration statements, apply configuration statements, and perform. POST.
C. Test software routines, POST, load configuration files, load Cisco IOS software, test Cisco IOS software.
D. Perrform. POST, locate Cisco IOS software, load the Cisco IOS software, locate configuration statements, and apply configuration statements.
E. Load and test IOS, load configuration files, test software routines, POST.
F. None of the above
D 解析：Explanation:
Upon initial start up, Cisco routers perform. the following steps in order:
1. The router performs a power-on self-test (POST) to discover and verify the hardware.
2. The router loads and runs bootstrap code from ROM.
3. The router finds the IOS or other software and loads it.
4. The router finds the configuration file and loads it into running config.
第9题：
Which IOS security feature is configured by the ip inspect inspection-name {in | out} command？（）
- A、IPsec site-to-site VPN
- B、Cisco AutoSecure
- C、Cisco IOS Firewall
- D、IPS
正确答案:C
第10题：
What tasks can only be performed in the default or admin VDC？（）
- A、 EPLD upgrade， IOS ISSU， FCoE feature enablement， CoPP configuration， and rolling back a checkpoint
- B、 EPLD upgrade， Cisco IOS ISSU， FCoE feature enablement， CoPP configuration， and ACL capture enablement
- C、 EPLD upgrade， Cisco IOS ISSU， FCoE feature enablement， CoPP configuration and SNMP configuration
- D、 EPLD upgrade， Cisco IOS ISSU， FCoE feature enablement， CoPP configuration， and write erase
正确答案:B