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

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: A MAC address is a hexadecimal number identifying the physical connection of a host MAC addresses are said to operate on layer 2 of the OSI model IP addresses, which can be expressed in binary or decimal format, are logical identifiers that are said to be on layer 3 of the OSI model Hosts on the same physical segment locate one another with MAC addresses, while IP addresses are used when they reside on different LAN segments or subnets Even when the hosts are in different subnets , a destination IP address will be converted to a MAC address when the packet reaches the destination network via routing

Correct Answer: 48 bits (6 bytes) expressed as a hexadecimal number

Correct Answer: The application layer is responsible for finding the network resources broadcast from a server and adding flow control and error control (if the application developer chooses)

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: : 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: 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: 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.