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Cisco 640-821 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| IP Addressing and Subnetting | 25% | - Subnetting and VLSM - ARP, ICMP, and DHCP operation - IPv4 addressing and classes - Private vs public IP addressing |
| Cisco IOS Basics | 20% | - Password and security basics - Initial device configuration - IOS navigation and command-line interface - Managing configuration files |
| Routing and WAN Basics | 15% | - Routing table overview - Common WAN technologies - Static and dynamic routing principles - Basic network troubleshooting |
| Switching Fundamentals | 15% | - VLAN basics and configuration - Switch operation and port configuration - LAN switching concepts |
| Network Fundamentals | 25% | - Network components: routers, switches, hubs, cables - OSI and TCP/IP model layers - Network types: LAN, WAN, WLAN - Ethernet standards and operation |
Cisco Introduction to Cisco Networking Technologies Sample Questions:
Refer to the graphic. What is the purpose of the two numbers shown following the exec- timeout command?
- A. If no router activity has been detected in one hour and 55 minutes, the console will be locked out.
- B. If no commands have been typed in one minute and 55 seconds, the console connection will be closed.
- C. If connected to the router by Telnet, input must be detected within one hour and 55 seconds or the connection will be closed.
- D. If connected to the router by Telnet, input must be detected within one minute and 55 seconds or the connection will be closed.
- E. If no commands have been typed in 55 seconds, the console connection will be closed.
What is the default configuration register setting on most Cisco routers?
- A. 0x2102
- B. 0x2142
- C. 0x2210
- D. 0x2012
- E. 0x2104
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
lab
Shore(config)# interface eth0
Shore(config-if)# ip address 192.168.195.113 255.255.255.240
Shore(config-if)# no shutdown
Shore(config-if)# exit
Shore(config)# interface ser0
Shore(config-if)# ip address 192.168.195.33 255.255.255.240
Shore(config-if)# no shutdown
Shore(config-if)# exit
Shore(config)# router rip
Shore(config-router)# network 192.168.195.0
Shore(config-router)# end
Shore# copy run start
What is the subnet address of 172.16.159.159/22?
- A. 172.16.156.0
- B. 172.16.159.0
- C. 172.16.128.0
- D. 172.16.0.0
- E. 172.16.159.128
- F. 172.16.192.0
