Ports 1 to 1023 4. Identify the port numbers for the following applications a. Telnet 23 b. HTTP 80 c. FTP 20, 21 d. DNS 53 e. DHCP 67, 68 5. Define the purpose of a connection oriented protocol. Give an example. It establishes the network connection, manages the data transfer, and terminates the connection.
Dedicated digital circuits 3. c. Routers use Layer 3 and ignore Layers 1 and 2. d. Routers discard old data-link headers and insert new data-link headers as part of their logic, which treats each interface’s lower-layer details as independent from each other. 4. b. As a transport service to deliver IP packets to the next IP router 5. b. Star 6. c. 64 Kbps, 1.544 Mbps, and any speed in between d. No literal distance limitation 7. a. A patch cable with RJ-48 8. c. The switches map the T1 customer lines to one of 28 different frequencies in the T3 trunks.
For a network address, what does the host portion of the address appear as in binary representation? The host portion of the address has 0 for each host bit in the host portion of the address. The network address is usually a standard way to refer to a network. 14. For a broadcast address, what does the host portion of the address appear as in binary representation?
* 10.0.0.0/8 is a private class A network address with the host ID range of 10.0.0.1 – 10.255.255.254 * 172.16.0.0/12 uses class B addresses and allows for up to 16 class B networks. Addresses on this network range from 172.16.0.1 – 172.31.255.254 * 192.168.0.0/16 can provide up to 256 class C networks. IP addresses in this group range from 192.168.0.1 – 192.168.255.254 An Internet Protocol address (IP address) is a numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or network interface identification and location addressing. Its role has been characterized as follows: "A name indicates what we seek.
What is the difference between a hub and a switch? Hub – Broadcasts data it receives to all devices connected to its ports. Switch – Establishes a direct connection from the sender to the destination, without passing the data traffic to other networking devices. 13. What information is not included in an Ethernet frame?
Which of the following would be the correct FQDN for a resource record in a reverse lookup zone, if the computer’s IP address is 10.75.143.88? a. 22.214.171.124.in-addr.arpa b. 10.75.143.88. in-addr.arpa c. in-addr.arpa.126.96.36.199 d. arpa.in-addr. 10.75.143.88 4.