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- Question
In practical IPv6 application, The encapsulation of IPv6 packets inside IPv4 packets is called what? A. tunneling B. hashing C. routing D. NAT
- Correct Answer
- : A Explanation: Remember, most network is still build on IPv4 structure and IPv4 is not going away in a hurry? one of the many techniques used to migrate to IPv6 is Tunneling Tunneling is a method that a network built on IPv4 structure can be configured to traffic IPv6 packet simultaneously
- 1. The router address 192.168.10.250 is the default gateway for both the Web Server 2 and Host 1. What is the correct subnet mask for this network? A. 255.255.255.0 B. 255.255.255.192 C. 255.255.255.250 D. 255.255.255.252 Discuss
- 2. What must be configured on the network in order for users on the Internet to view web pages located on Web Server 2? A. On router R2, configure a default static route to the 192.168.10.0 network B. On router r2, configure DNS to resolve the URL assigned to Web Server 2 to the 192.168.10.20 address C. On router R1, configure NAT to translate an address on the 209.165.100.0/24 network to 192.168.10.20 D. On router R1, configure DHCP to assign a registered IP address on the 209.165.100.0/24 network to Web Server 2 Discuss
- 3. An administrator issues the command A. The PC host PC1 has connectivity with a local host B. The PC host PC1 has connectivity with a Layer 3 device C. The PC host PC1 has a default gateway correctly configured D. The PC host PC1 has connectivity up to Layer 5 of the OSI model E. The PC host PC1 has the TCP/IP protocol stack correctly installed Discuss
- 4. What is the purpose of the DHCP server? A - to provide storage for email B - to translate URLs to IP addresses C - to translate IPv4 addresses to MAC addresses D - to provide an IP configuration information to hosts Discuss
- 5. All hosts in the networks have been operational for several hours when the DHCP server goes down. What happens to the hosts that have obtained service from the DHCP server? A. The hosts will not be able to communicate with any other hosts. B. The hosts will continue to communicate normally for a period of time. C. The hosts will be able to communicate with hosts outsides their own network D. The hosts will only be able to communicate with other hosts by IP address not by host name Discuss
- 6. Identify the fields in the Data Link portion of an Ethernet frame? Discuss
- 7. How does DHCP client ensure that no other computer has its assigned IP address?
Options- A. Acknowledge receipt of a TCP segment
- B. Ping to its own address to see if a response is detected
- C. Broadcast a Proxy ARP
- D. Broadcast a gratuitous ARP Discuss
- 8. What is the address range of a Class B network address in binary?
Options- A. 01xxxxxx
- B. 0xxxxxxx
- C. 10xxxxxx
- D. 110xxxxx Discuss
- 9. Which of the following allows a router to respond to an ARP request that is intended for a remote host?
Options- A. Gateway DP
- B. Reverse ARP (RARP)
- C. Proxy ARP
- D. Inverse ARP (IARP) Discuss
- 10. What is the 127.0.0.1 address used for? Discuss
CISCO Certification problems
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Correct Answer: : A
Correct Answer: : C
Correct Answer: : E Explanation: The ?ping 127001? command is used to troubleshoot the local network card and the TCP/IP stack to make sure is working correctly If an ICMP echo reply is received, that shows there are connectivity to a particular host in the network
Correct Answer: : D Explanation:The main purpose of the DHCP server is to provide IP configuration parameters to hosts such as the default gateway, domain name, Domain Name System ? DNS
Correct Answer: : B Explanation : Dynamic Host configuration Protocol ? DHCP ? assigns an IP address to a client for a limited period of time, this address is then saved in a database When the DHCP Server goes down, that client can still use the allocated IP address for a limited period of time
Correct Answer: The fields in the Data Link portion of a frame include the Preamble, Start Frame Delimiter, Destination MAC address, Source MAC address, Length or Type, Data, and Frame Check Sequence
Correct Answer: Broadcast a gratuitous ARP
Explanation:
To stop possible address conflicts , a DHCP client will use gratuitous ARP (broadcast an ARP request for its own IP address) to see if another host responds.
Correct Answer: 10xxxxxx
Explanation:
The range of a Class B network address is 128 - 191. This makes our binary range 10xxxxxx.
Correct Answer: Proxy ARP
Explanation:
Proxy ARP can help machines on a subnet reach remote subnets without configuring routing or a default gateway.
Correct Answer: Loop back or diagnostics
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