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- Question
Differentiate types of Ethernet cabling and identify their proper application?
- 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)
- 1. 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
- 2. 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
- 3. Your company wants to reconfigure a Catalyst 2950. Which actions must be taken to erase the old configuration?(Choose three) A. Erase flash B. Restart the switch C. Delete the VLAN database D. Erase the startup configuration Discuss
- 4. You have the following binary number :10110111. What are the decimal and hexadecimal equivalents?
Options- A. 69/0x2102
- B. 183/B7
- C. 173/A6
- D. 83/0xC5 Discuss
- 5. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Options- A. Straight - through
- B. Crossover cable
- C. Crossover with a CSU/DSU
- D. Rolled Discuss
- 6. 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
- 7. 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
- 8. Which of the following protocols uses both TCP and UDP?
Options- A. FTP
- B. SMTP
- C. Telnet
- D. DNS Discuss
- 9. Differentiate the DoD and the OSI network models? Discuss
- 10. 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
CISCO Certification problems
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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: Answer: B C D
Correct Answer: 183/B7
Explanation:
You must be able to take a binary number and convert it into both decimal and hexadecimal. To convert to decimal, just add up the 1s using their values. The values that are turned on with the binary number of 10110111 are 128+32+16+4+2+1=183. To get the hexadecimal equivalent, you need to break the eight binary digits into nibbles (4 bits), 1011 and 0111. By adding up these values, you get 11 and 7. In hexadecimal, 11 is B, so the answer is 0xB7.
Correct Answer: Rolled
Explanation:
To connect to a router or switch console port, you would use an RJ45 UTP rolled cable.
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: 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: DNS
Explanation:
DNS uses TCP for zone exchanges between servers and UDP when a client is trying to resolve a hostname to an IP address.
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.
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