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2021 Sep 100-101 practice exam:

Q21. Which two commands will display the current IP address and basic Layer 1 and 2 status of an interface? (Choose two.) 

A. router#show version 

B. router#show ip interface 

C. router#show protocols 

D. router#show controllers 

E. router#show running-config 

Answer: BC 


Q22. An administrator must assign static IP addresses to the servers in a network. For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. 

Which of the following should be entered into the IP properties box for the sales server? 

A. IP address: 192.168.20.14 Subnet Mask: 255.255.255.248 Default Gateway: 192.168.20.9 

B. IP address: 192.168.20.254 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.20.1 

C. IP address: 192.168.20.30 Subnet Mask: 255.255.255.248 Default Gateway: 192.168.20.25 

D. IP address: 192.168.20.30 Subnet Mask: 255.255.255.240 Default Gateway: 192.168.20.17 

E. IP address: 192.168.20.30 Subnet Mask: 255.255.255.240 Default Gateway: 192.168.20.25 

Answer: C 


Q23. What is the effect of using the service password-encryption command? 

A. Only the enable password will be encrypted. 

B. Only the enable secret password will be encrypted. 

C. Only passwords configured after the command has been entered will be encrypted. 

D. It will encrypt the secret password and remove the enable secret password from the configuration. 

E. It will encrypt all current and future passwords. 

Answer: E 


Q24. What is the best practice when assigning IP addresses in a small office of six hosts? 

A. Use a DHCP server that is located at the headquarters. 

B. Use a DHCP server that is located at the branch office. 

C. Assign the addresses by using the local CDP protocol. 

D. Assign the addresses statically on each node. 

Answer: D 


Q25. Refer to the exhibit. 


A network associate has configured OSPF with the command: 

City(config-router)# network 192.168.12.64 0.0.0.63 area 0 

After completing the configuration, the associate discovers that not all the interfaces are participating in OSPF. Which three of the interfaces shown in the exhibit will participate in OSPF according to this configuration statement? (Choose three.) 

A. FastEthernet0 /0 

B. FastEthernet0 /1 

C. Serial0/0 

D. Serial0/1.102 

E. Serial0/1.103 

F. Serial0/1.104 

Answer: BCD 


100-101  practice exam

Up to the minute ccna 100-101 pdf:

Q26. What does the "Inside Global" address represent in the configuration of NAT? 

A. the summarized address for all of the internal subnetted addresses 

B. the MAC address of the router used by inside hosts to connect to the Internet 

C. a globally unique, private IP address assigned to a host on the inside network 

D. a registered address that represents an inside host to an outside network 

Answer: D 


Q27. Refer to the exhibit. 


Why did the device return this message? 

A. The command requires additional options or parameters 

B. There is no show command that starts with ru. 

C. The command is being executed from the wrong router mode. 

D. There is more than one show command that starts with the letters ru. 

Answer: D 


Q28. Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.) 

A. Global addresses start with 2000::/3. 

B. Link-local addresses start with FE00:/12. 

C. Link-local addresses start with FF00::/10. 

D. There is only one loopback address and it is ::1. 

E. If a global address is assigned to an interface, then that is the only allowable address for the interface. 

Answer: AD 


Q29. Refer to the exhibit. 


Why are two OSPF designated routers identified on Core-Router? 

A. Core-Router is connected to more than one multi-access network. 

B. The router at 208.149.23.130 is a secondary DR in case the primary fails. 

C. Two router IDs have the same OSPF priority and are therefore tied for DR election 

D. The DR election is still underway and there are two contenders for the role. 

Answer: A 


Q30. Refer to the exhibit. 


The ports that are shown are the only active ports on the switch. The MAC address table is shown in its entirety. The Ethernet frame that is shown arrives at the switch. 

What two operations will the switch perform when it receives this frame? (Choose two.) 

A. The MAC address of 0000.00aa.aaaa will be added to the MAC address table. 

B. The MAC address of 0000.00dd.dddd will be added to the MAC address table. 

C. The frame will be forwarded out port fa0/3 only. 

D. The frame will be forwarded out fa0/1, fa0/2, and fa0/3. 

E. The frame will be forwarded out all the active ports. 

Answer: AD