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.
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.
It is the portion of the IP address that can be used to produce hosts or user IPs for devices. 4. Which of the following is a private IP address and can’t be routed across the Internet? d. 221.24.250.20, because it over the limit of a class C private address. The range for class C private is 192.168.0 to 192.168.255.
Erica Moskovitz NT2640 July 3, 2014 Homework 3 1) How many bits of mask are required to provide 30 host addresses? subnet address of 130.68.0.0 with a mask of 255.255.248.0 will give you 2046 useful addresses. These addresses will be within the 130.68.0.0-130.68.7.255 range. 2) How many networks will be created using 255.55.0.0 given class A IP network(ie 10.0.0)? The Class A networking address scheme is designed for the government and large institutions needing a great deal of unique nodes.
3. Approximately how many IPv6 addresses are possible?128 bit. IPv6 can theoretically hold 2^128 IP addresses. 4. Why do you think the world is running out of IPv4 addresses?
While they have not been assigned to customers they will soon. IPv4 sharing between different customers will be common. 6. Since IPv6 is the long-term solution for this issue, why do you think we are still using and assigning IPv4 addresses on the Internet? I believe there are two major reasons.
Adam Odegard NT2640 Weak 1 INFORMATION ON IP ADDRESS CLASSES In order for systems to locate each other in a distributed environment, nodes are given explicit addresses that uniquely identify the particular network the system is on and uniquely identify the system to that particular network. When these two identifiers are combined, the result is a globally-unique address. IP address is a code made up of numbers divided by three dots that finds particular computers on the internet. They are 32-bit binary numbers, consisting of 2 sub identifiers, which identify the host and network. It is four octets of numbers from 0-255 represented in decimal form.
A. OSPF B. BGP C. EIGRP D. RIP Match the terms with their best corresponding definitions or concepts. (1 point each) ___ SYN, ACK ___ Spanning Tree Algorithm _ Repeater ___ Connectionless 1) A Layer 4 Protocol 2) You might this layer 2 technology in Token Ring LANs, but not in Ethernet LANs 3) Techniques to efficiently use IP addresses 4) This layer 2 technology helps prevent bridge loops in Ethernet LANs and also in Token Ring LANs 5) Something you might find in the 3-way handshake 6) The ability to talk and listen at the same time 7) This device moves bits from one datalink network to another without inspecting the frame’s
IPv6 was developed by the Internet Engineering Task Force (IETF) to deal with the long-anticipated problem of IPv4 address exhaustion. IPv6 is intended to replace IPv4, which still carries the vast majority of Internet traffic as of 2013. As of late November 2012, IPv6 traffic share was reported to be approaching 1% (Wikipedia, 2013). On the Internet, data is transmitted in the form of network packets. IPv6 specifies a new packet format, designed to minimize packet header processing by routers.
Using the product operator, if table A has 4 rows and table B has 4 rows, the number of rows in the product of these two tables is ____. a.|4|c.|16| b.|8|d.|256| A 24. The ____ command will create an application program's or individual user's picture of the database. a.|CREATE SNAPSHOT|c.|SELECT VIEW| b.|SELECT SNAPSHOT|d.|CREATE VIEW| D 25. Essentially, setting the value in a given field to ____ is similar to not entering a value in it at all.