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Cisco 640-821 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Switching Fundamentals | - VLAN basics - LAN switching concepts |
| Network Media and Topologies | - Ethernet LAN technologies - WAN technologies overview |
| Cisco IOS and Device Operation | - Cisco IOS navigation and commands - Basic device configuration |
| IP Addressing and Routing Basics | - IPv4 addressing and subnetting - Basic routing concepts |
| Network Management and Troubleshooting | - Network monitoring basics - Basic troubleshooting techniques |
| Networking Fundamentals | - OSI and TCP/IP models - Network types and components |
Cisco Introduction to Cisco Networking Technologies Sample Questions:
What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask?
- A. 30
- B. 15
- C. 31
- D. 16
- E. 14
- F. 32
Correct Answer: A π³οΈ
A network administrator is having trouble with a remote router. The administrator connects to the router by Telnet and types a debug command, but no debug output appears on the screen. What command should the administrator type to view the debug output?
- A. Router# debug all
- B. Router# no debug *
- C. Router# enable debug
- D. Router# show debug
- E. Router# terminal monitor
Correct Answer: E π³οΈ
Refer to the exhibit. What is needed to allow host A to ping host B?
- A. a straight-through cable connecting the switches
- B. a backbone switch connecting the switches with either fiber optic or straight-through cables
- C. a CSU/DSU connected to the switches with straight-through cables
- D. a router connected to the switches with straight-through cables
- E. a crossover cable connecting the switches
Correct Answer: D π³οΈ
What is the purpose of using the copy flash tftp command on a router?
- A. to create a backup copy of the IOS
- B. to move the IOS image from a server to the router
- C. to copy an IOS image to the router
- D. to backup the router configuration to a server
Correct Answer: A π³οΈ
According to the information provided in the exhibit, from where was the currently running version of IOS loaded?
- A. NVRAM
- B. ROM
- C. flash
- D. TFTP server
Correct Answer: B π³οΈ
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