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- Question
Which of the following describes the creation of private networks across the Internet, enabling privacy and tunneling of non-TCP/IP protocols?
Options- A. HDLC
- B. Cable
- C. VPN
- D. IPSec
- E. xDSL
- Correct Answer
- VPN
ExplanationA allows the creation of private networks across the Internet, enabling privacy and tunneling of non-TCP/IP protocols. A VPN can be set up across any type of link. - 1. What are reasons for creating OSPF in a hierarchical design?
- To decrease routing overhead
- To speed up convergence
- To confine network instability to single areas of the network
- To make configuring OSPF easier
Options- A. 1, 2 and 3
- B. 3 only
- C. 3 and 4
- D. 2, 3 nd 4 Discuss
- 2. Which of the following is the valid host range for the subnet on which the IP address 192.168.168.188 255.255.255.192 resides?
Options- A. 192.168.168.129-190
- B. 192.168.168.129-191
- C. 192.168.168.128-190
- D. 192.168.168.128-192 Discuss
- 3. Which protocol is used to send a destination network unknown message back to originating hosts?
Options- A. TCP
- B. ARP
- C. ICMP
- D. BootP Discuss
- 4. You want to implement a mechanism that automates the IP configuration, including IP address, subnet mask, default gateway, and DNS information. Which protocol will you use to accomplish this?
Options- A. SMTP
- B. SNMP
- C. DHCP
- D. ARP Discuss
- 5. Which of the following is the decimal and hexadecimal equivalents of the binary number 10011101?
Options- A. 155, 0x9B
- B. 157, 0x9D
- C. 159, 0x9F
- D. 185, 0xB9 Discuss
- 6. A default Frame Relay WAN is classified as what type of physical network?
Options- A. Point-to-point
- B. Broadcast multi-access
- C. Non-broadcast multi-access
- D. Non-broadcast multipoint Discuss
- 7. What layer of the OSI model would you assume the problem is in if you type show interface serial 1 and receive the following message? "Serial1 is down, line protocol is down."
Options- A. Physical layer
- B. Data Link layer
- C. Network layer
- D. None. It is a router problem. Discuss
- 8. You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?
Options- A. replace run start
- B. copy run start
- C. copy start run
- D. reload Discuss
- 9. You type Router#sh ru and receive an % ambiguous command error. Why did you receive this message?
Options- A. The command requires additional options or parameters.
- B. There is more than one show command that starts with the letters ru.
- C. There is no show command that starts with ru.
- D. The command is being executed from the wrong router mode. Discuss
- 10. What command will display the forward/filter table?
Options- A. show mac filter
- B. show run
- C. show mac address-table
- D. show mac filter-table Discuss
More questions
Correct Answer: 1, 2 and 3
Explanation:
OSPF is created in a hierarchical design, not a flat design like RIP. This decreases routing overhead, speeds up convergence, and confines network instability to a single area of the network.
Correct Answer: 192.168.168.129-190
Explanation:
256 - 192 = 64. 64 + 64 = 128. 128 + 64 = 192. The subnet is 128, the broadcast address is 191, and the valid host range is the numbers in between, or 129-190.
Correct Answer: ICMP
Explanation:
ICMP is the protocol at the Network layer that is used to send messages back to an originating router.
Correct Answer: DHCP
Explanation:
Dynamic Host Configuration Protocol (DHCP) is used to provide IP information to hosts on your network. DHCP can provide a lot of information, but the most common is IP address, subnet mask, default gateway, and DNS information.
Correct Answer: 157, 0x9D
Explanation:
To turn a binary number into decimal, you just have to add the values of each bit that is a 1. The values of 10011101 are 128, 16, 8, 4, and 1. 128 + 16 + 8 + 4 + 1 = 157.
Hexadecimal is a base-16 number system. The values of hexadecimal are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F-16 characters total, from which to create all the numbers you'll ever need. So, if 1001 in binary is 9, then the hexadecimal equivalent is 9. Since we then have 1101, which is 13 in binary, the hexadecimal answer is D and the complete hexadecimal answer is 0x9D.
Correct Answer: Non-broadcast multi-access
Explanation:
Frame Relay, by default, is a non-broadcast multi-access (NBMA) network, which means that broadcasts, such as RIP updates, will not be forwarded across the link by default.
Correct Answer: Physical layer
Explanation:
If you see that a serial interface and the protocol are both down, then you have a Physical layer problem. If you see
serial1 is up,
line protocol is down, then you are not receiving (Data Link) keepalives from the remote end.
Correct Answer: reload
Explanation:
To completely replace the running-config with the startup-config, you must reload the router. Note : You may have picked option C, which isn't a bad answer. Remember, though, it doesn't replace the configuration, it appends it.
Correct Answer: There is more than one show command that starts with the letters ru.
Explanation:
The
% ambiguous command error means that there is more then one possible command that starts with
ru. Use a question mark to find the correct command.
Correct Answer: show mac address-table
Explanation:
The command
show mac address-table displays the forward/filter table on the switch.
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