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- Question
Which of the following protocols uses both TCP and UDP?
Options- A. FTP
- B. SMTP
- C. Telnet
- D. DNS
- Correct Answer
- DNS
ExplanationDNS uses TCP for zone exchanges between servers and UDP when a client is trying to resolve a hostname to an IP address.
- 1. The DoD model (also called the TCP/IP stack) has four layers. Which layer of the DoD model is equivalent to the Network layer of the OSI model?
Options- A. Application
- B. Host-to-Host
- C. Internet
- D. Network Access Discuss
- 2. If you use either Telnet or FTP, what layer are you using to generate the data?
Options- A. Application
- B. Presentation
- C. Session
- D. Transport Discuss
- 3. Differentiate types of Ethernet cabling and identify their proper application? Discuss
- 4. Which three IP addresses can be assigned to hosts if the subnet mask is /27 and subnet zero is usable? A. 10.15.32.17 B. 17.15.66.128 C. 66.55.128.1 D. 135.1.64.34 E. 129.33.192.192 F. 192.168.5.63 Discuss
- 5. If one of the host connected to Sw-AC3 wants to send message to ip 190.0.2.5 (or any ip on a different subnet) what will be the destination MAC address ? Discuss
- 6. Differentiate the DoD and the OSI network models? Discuss
- 7. If a host on a network has the address 172.16.45.14/30, what is the subnetwork this host belongs to?
Options- A. 172.16.45.0
- B. 172.16.45.4
- C. 172.16.45.8
- D. 172.16.45.12 Discuss
- 8. You need to subnet a network that has 5 subnets, each wit at least 16 hosts. Which classful subnet mask would you use?
Options- A. 255.255.255.192
- B. 255.255.255.224
- C. 255.255.255.240
- D. 255.255.255.248 Discuss
- 9. You telnet into a remote device and type debug ip rip, but no output from the debug command is seen. What could the problem be?
Options- A. You must type the show ip rip command first
- B. IP addressing on the network is incorrect
- C. You must use the terminal monitor command
- D. Debug output is sent only to the console. Discuss
- 10. What is the command to copy the startup-config filre to DRAM? Discuss
CISCO Certification problems
Search Results
Correct Answer: Internet
Explanation:
The four layers of the DoD model are Application/process, Host-to-Host, Internet, and Network Access. The Internet layer is equivalent to the Network layer of the OSI model.
Correct Answer: Application
Explanation:
Both FTP and Telnet use TCP at the Transport layer; however, they both are Application layer protocols, so the Application layer is the best answer for this question.
Correct Answer: The three types of cables that can be created from an Ethernet cable are straight-through (to connect a PC's or a router's Ethernet interface to a hub or switch), crossover (to connect hub to hub , hub to switch, switch to switch, or PC to PC), and rolled (for a console conection from a PC to a router or switch)
Correct Answer: : A C D Explanation: If you follow the cram table, /27 is mask 255255255224 3 bits were borrowed with value of 32 Follow the fourth octets of the addresses: A is a usable host address B is classified as a network address C is a usable host address form the subnet 0 D is a usable host address E is a network address F is a broadcast address
Correct Answer: and Explanation: Because the destination address is on a different subnet from the switch, the packet will be forwarded to its default gateway To verify the default gateway of this switch, use the show running-config command From the output above, we can see that its default-gateway is 1921681254 Which can be said to be a layer 3 device (router); in this case, the VLAN-R1 router You can use the show cdp neighbor detail command verify further From the output above, you can confirm that the switch's default gateway is VLAN-R1 router (with the IP address of 1921681254)The interface FastEthernet0/3 shows that the switch is directly connected to VLAN-R1 router through the switchport Fa0/3 To verify the MAC address associated this interface is interface, you use the show mac-address-table command: Looking closely at the table above, you will discorver that the corresponding MAC address is 000ab7e98360 Although there are some entries on port Fa0/3 with different Vlans ,but they have the same MAC address From the output above, you can confirm that the switch's default gateway is VLAN-R1 router (with the IP address of 1921681254)The interface FastEthernet0/3 shows that the switch is directly connected to VLAN-R1 router through the switchport Fa0/3 To verify the MAC address associated this interface is interface, you use the show mac-address-table command
Correct Answer: The DoD model is a condensed version of the OSI model, composed of four layers instead of seven, but is nonetheless like the OSI model in that it can be used to describe packet creation and devices and protocols can be mapped to its layers
Correct Answer: 172.16.45.12
Explanation:
A/30, regardless of the class of address, has a 252 in the fourth octet. This means we have a block size of 4 and our subnets are o,4,8,12,16, etc. Address 14 is obviously in the 12 subnet.
Correct Answer: 255.255.255.224
Explanation:
You need 5 subnets, each with at least 16 hosts. The mask 255.255.255.240 provides 16 subnets with 14 hosts - this will not work. The mask 255.255.255.224 provides 8 subnets, each with 30 hosts. This is the best answer.
Correct Answer: You must use the terminal monitor command
Explanation:
To see console messages through your Telnet session, you must enter the terminal monitor command.
Correct Answer: copy start run
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