Review Questions

1.	Which protocol works at the Internet layer and is responsible for making routing decisions? TCP UDP IP ARP
2.	Which of the following can be used to transport files between hosts? Telnet FTP SMTP ARP
3.	Which protocol can be used to transport mail messages across an internetwork? Telnet FTP SMTP ARP
4.	Which protocol provides remote virtual terminal access? Telnet FTP SMTP ARP
5.	Which of the following statements is true? TCP is connection-oriented; UDP uses acknowledgments only. Both TCP and UDP are connection-oriented, but only TCP uses windowing. TCP is connection-oriented, but UDP is connectionless. TCP and UDP both have sequencing, but UDP is connectionless.
6.	What does the acronym ARP stand for? ARP Resolution Protocol Address Restitution Protocol Address Resolution Phase Address Resolution Protocol
7.	Which of the following protocols is used to get an IP address from a known MAC address? ARP RARP IP TCP UDP
8.	Which two of the following protocols are used at the Transport layer? ARP RARP IP TCP UDP
9.	Which of the following is a connectionless protocol at the Transport layer? ARP RARP IP TCP UDP
10.	Which of the following protocols provides connection-oriented transport to upper layer protocols? RIP NLSP SPX NCP
11.	In TCP/IP, which of the following functions are performed by IP at the Internet layer of the DOD model? (Choose all that apply.) Connection-oriented delivery of data Routing Routing through an internetwork Providing single network interface to upper layers Setup and establishment of full-duplex communication channel
12.	Which of the following can respond to a client GNS request? (Choose all that apply.) Local NetWare server Remote NetWare server Local client Cisco router
13.	Of the following TCP/IP protocols, which is most like IPX? A connectionless protocol like UDP A connection-oriented protocol like TCP An address resolution protocol like ARP A file transfer protocol like FTP
14.	How often do servers exchange SAP information unless set otherwise? Every 15 seconds Every 30 seconds Every 60 seconds Every 120 seconds
15.	Given the IPX address 00007C81.00A0.2494.E939, which of the following is the associated IPX network address and which is the node address? Network address: 00a0, node address: 2494 E939 Network address: 00007C81, node address: 00a0.2494.e939 Network address: 00A0.2494, node address: E939 Network address: 7C81 00a0, node address: 2494.e939
16.	Of the following TCP/IP protocols, which is most like SPX? Clue: SPX is at Layer 4 of the OSI model. A connectionless protocol like UDP A connection-oriented protocol like TCP An address resolution protocol like ARP A file transfer protocol like FTP
17.	Which of the following protocols are at Layer 3 of the OSI Model? (Choose all that apply.) IPX SPX IP TCP UDP
18.	How many bytes are in an IPX address? 4 8 10 20
19.	Which two of the following methods are used to resolve network addresses to MAC addresses? Hello Protocol (HP) Router Query Protocol (RQP) Serial Line Address Resolution Protocol (SLARP) Dynamic Address Resolution (DAR) Address Resolution Protocol (ARP)
20.	Which of the following statements is true regarding IPX addresses assigned to a node? A NetWare administrator defines the node address when installing the software. NetWare nodes receive their address from a DHCP server. NetWare nodes request a node address at bootup. NetWare nodes use the hardware MAC address.

Answers

1.	C Routers use IP and logical addressing to determine packet routing.
2.	B FTP is used to both send and receive data between hosts on the network.
3.	C SMTP is used to send or transport mail messages between hosts of a network.
4.	A Telnet allows for remote access and terminal emulation between hosts.
5.	C TCP uses virtual circuits to send sequenced, acknowledged, reliable data between hosts. UDP sends data unsequenced, unacknowledged, unreliable, but with low overhead.
6.	D Address Resolution Protocol is the correct term.
7.	B RARP is the protocol used by diskless workstations to determine their IP address given their MAC address.
8.	D, E TCP and UDP are the protocols used at the Transport layer in the TCP/IP protocol suite. The Host-to-Host layer functions like the Transport layer in the OSI model. In fact, the term “Transport layer” is often used interchangeably with Host-to-Host.
9.	E UDP is the connectionless Transport layer protocol while TCP is the connection-oriented Transport layer protocol. The Host-to-Host layer functions like the Transport layer in the OSI model. In fact, the term “Transport layer” is often used interchangeably with Host-to-Host.
10.	C SPX is the protocol used by the IPX/SPX protocol suite for connection-oriented data delivery at the Transport layer. The Host-to- Host layer functions like the Transport layer in the OSI model. In fact, the term “Transport layer” is often used interchangeably with Host-to-Host.
11.	B, C IP is used for the logical addressing of network devices and destination of network routes by routers.
12.	A, D NetWare servers always respond to local GNS broadcast requests by clients, and Cisco routers can be configured to respond to clients where NetWare servers do not exist on their local networks.
13.	A IPX is a protocol designed very much like UDP and is connectionless.
14.	C Every 60 seconds, servers exchange their SAP table entries to build a comprehensive list of network services.
15.	B The first 32 bits represent the assignable IPX network address, and the final 48 bits represent the node address, also known as the MAC address.
16.	B TCP is most like SPX and uses connection-oriented, sequenced, acknowledged, reliable, virtual circuits for data delivery.
17.	A, C Both IPX and IP are responsible for logical addressing at Layer 3 of the OSI model and are used by hosts, routers, and routing protocols to determine host and network addressing.
18.	C 10 bytes (80 bits) is the length of an IPX address using the 32-bit network address and the 48-bit node address.
19.	C, E SLARP is rare in today’s networks but was designed to resolve network addresses to MAC addresses and operates much like ARP.
20.	D An IPX address includes the node’s MAC addresses and eliminates the need for logical-to-physical address resolution used in IP networks.