Can please do all of them just the answer for all

1. Answer the following questions concerning Chapter 1: 1.1 As a message moves from the data link layer up to the application layer in the receiver, headers are a. added b. removed c. rearranged d. modified 1.2 Which pair of layers are NOT peer layers? Transport layer in the sender and transport layer in the receiver Transport layer in the sender and application layer in the receiver Application layer in the sender and application layer in the receiver Network layer in the sender and network layer in the receiver a. b. 1.3 Which is a possible IP address used in layer 3 of the model? a)1 28.34.56.1 b.01-23-45-AB-CD-23 c.80 d. none of these What are the (partial) contents of a typical layer 2 frame? a. Recipient's IP address, sender's IP address, data b. 1.4 Recipient's e-mail address, sender's e-mail address, data Recipient's MAC address, sender's MAC address, data c. d. Recipent's port number, sender's port number, data 1.5 Which organization publishes protocols for layers 3, 4 and 5 of the model? a. IETF b. US Govenment c. IEEE d. TCP/IP 1.6 Which layer of the 5-layer model uses only hardware? a. application b. transport c. network d. data link e. physical 1.7 The unit exchanged at the data link layer (layer 2) is called a frame and the unit exchanged at the network layer (layer 3) is called a packet. Which is true? a. frames encapsulate packets b. packets encapsulate frames c. both of these d. neither of these 2. Assume a five layer TCP/IP model as shown in the class notes. There are 800 bytes of application data. A 20 byte header is added at the transport layer and a 24 byte header is added at the network layer. A 14 byte header and a 4 byte trailer are added at the data link layer. a. b. c. d. How many bytes are sent to the physical layer? What percentage of the bytes sent to the physical layer is the original application layer data? How many bytes are in a network layer (layer 3) packet? What percentage of the bytes in the layer 3 packet is overhead