Comptia Network+ Class Review Questions

False. It supports runs of up to 500 m over multi-mode fiber optic cable.

1000BaseSX supports 10 km runs and is designed for single mode fiber. True False

True

10Base5 is connected by dropping a cable from a tranceiver directly to the NIC. True False

A tone generator and a tone probe

A Fox and Hound is also known as what? Time Domain Reflectometer (TDR) Wiremap A tone generator and a tone probe Continuity tester

False

A MAC and IP address are identical types of addresses. True False

0, 64, 128, 192

A company has subnetted their Class C network address into four subnets with a /26 subnet mask. What are the addresses of the four subnets? 0, 1, 2, 3 128, 64, 32, 16 0, 64, 128, 192 1, 2, 4, 8

False. The receiving computer reads the MAC addresses that are contained within inbound frames, it does not add anything to the received frames

The receiving computer adds a MAC address to each inbound frame. True False

Segment

The transport layer produces which of the following. Packet Segment Frame MAC

False

Thick Ethernet does not have to be terminated on both ends of the coaxial cable True False

MAC (Media Access Control)

This describes the physical addressing and the rules about creating and transmitting frames Packet Segment Frame MAC (Media Access Control)

Thicknet

This is an Ethernet Coaxial cable and supports a maximum speed of 10 Mbps Cat 5 Cat 5e Cat 6a Thicknet

Frame

This item does not generate a MAC address but it contains a source and destination MAC Address. Packet Segment Frame MAC (Media Access Control)

Fiber distribution panel

This panel is used for fiber feeds and is a common distribution panel.

Packet

What comes out of the network layer? Packet Segment Frame MAC

182

What decimal number is represented by the binary number 1 0 1 1 0 1 1 0? 182 176 73 182.176.73.0

Address Resolution Protocol resolves MAC addresses with IP addresses

What does ARP stand for and what does it do? Advanced Routing Protocol determines routes between MAC Addresses Alternate Routing Protocol determines backup routes between MAC addresses Address Resolution Protocol resolves MAC addresses with IP addresses Advanced Resolution Protocol resolves network names to IP addresses

Thin Ethernet

What is another name for 10Base2? Thick Coaxial Ethernet Thin Ethernet Cat 3 Cat 5

Ethertype

What is known as the Data type block of an Ethernet frame? Destination IP address Source MAC address Ethertype Destination MAC address

Frame

What is the chunk of data that has been sent out of NIC called? Packet Segment Frame MAC

10Base5

What is the naming syntax of a Thick Ethernet Coax? 10Base 2 1000BaseSX 100BaseT 10Base5

Full-Duplex

What mode do switch ports work in when connected together with either a straight-through or crossover cable? Multi-mode Single-mode Half-Duplex Full-Duplex

Serial Ports

What port only has one pic and can only send out data one after another? Parallel Ports Reserved Ports Port 80 Serial Ports

Static

What service does not automatically assign IP address to a host? Static DHCP bootp APIPA

Cat 5 and Cat5e

What two wiring category's support maximum Ethernet speeds of 1 gigabit? Cat 5 Cat 5e Cat 6a Thicknet

Parallel Ports

What type of port can send multiple bits out simultaneously? Well-known ports UDP (User Datagram Protocol) Parallel Ports Serial Ports

It is built into the network interface card

Where does the computer get the MAC Address? It is generated by the Frame It is built into the network interface card The MAC address is another term for the IP address The receiving computer applies a MAC address to each inbound frame

Equipment room

Where is the connection for the router to the ISP found?

A representation of a real object or process

Which best describes a model? A duplicate of a real object or process A representation of a real object or process Multiple steps of a process converted into a single step The expansion of a single process step into multiple steps

Ensure that the connection from the router to the ISP is good

A network tech suspects a wiring issue in a work area. Which element does she not need to check? Verify link lights at the workstation and the switch port Ensure that the connection from the router to the ISP is good Confirm network settings in the operating system Ping the workstation NIC with a loopback plug installed

False. It only re-wires the internal port

A switch can re-wire the terminating connectors on a cable. True False

/27

An organization has five campus buildings. They want each building to be on its own subnet. Each campus will need a minimum of twenty-five IP addresses. The organization has the Class C network address 217.105. 2.0 assigned to it. Using CIDR, what subnet mask will yield the minimum number of subnetworks with the maximum number of hosts per network that will meet the requirements of the organization? /26 /27 /28 /29

Cat 6a

An organization is building out its offices. Initially, computer connections will be 1 gigabit Ethernet but the company plans to upgrade to 10 gigabit connections in the near future. What category of wiring should be installed so that the company will not have to re-wire the facility when they upgrade their Ethernet speed? Cat 5 Cat 5e Cat 6a Thicknet

C, B, C

Here are three IP addresses: 216.53.12.11, 130.22.255.170, 223.255.6.88. What class are each one (in order)? C, B, C B, A, C C, A, B A, C, A

4 subnets 62 hosts per subnet

How many subnets and hosts per subnet does a /26 give you?

8 subnets 30 hosts per subnet

How many subnets and hosts per subnet does a /27 give you?

16 subnets 14 hosts per subnet

How many subnets and hosts per subnet does a /28 give you?

32 subnets 6 hosts per subnet

How many subnets and hosts per subnet does a /29 give you?

Horizontal runs

Patch panels and punch down tools are used on which kind of network cables? Patch Cables Work area cables Horizontal runs Fiber optic runs

Well-known Ports

Ports 0-1024 are not transport layer delivery protocol and are known what? UDP (User Datagram Protocol) TCP (Transport Control Protocol) Port Number Well-Known Port

True

Subnet masks are never sent out of a host True False

A rogue DHCP server can assign incompatible IP addresses to hosts

Which choice is true of a rogue DHCP server? A rogue DHCP server increases the speed of the DHCP service A rogue DHCP server increases the pool of available IP addresses A rogue DHCP server can assign incompatible IP addresses to hosts A rogue DHCP server ensures that hosts will get compatible APIPA addresses

A

Which class of IP address am I - 1 to 126? A B C D

B

Which class of IP address am I 128-191? A B C D

C

Which class of IP address am I 192-223? A B C D

IEEE 802.3

Which committee governs the standards of the Ethernet? IEEE 802.11n IEEE 9001 IEEE 9002 IEEE 802.3

IEEE 802.11n

Which committee manages and maintains aspects of one of the Wi-Fi wireless standards? IEEE 802.11n IEEE 9001 IEEE 9002 IEEE 802.3

Destination IP address

Which field would not be found in an Ethernet Frame? Destination IP address Source MAC address Ethertype Destination MAC address

TCP (Transmission Control Protocol)

Which is a connection oriented protocol? UDP (User Datagram Protocol) TCP (Transport Control Protocol) Port Number Well-Known Port

Fiber optic runs

Which of the cables listed below are not punched into punch down blocks? Patch Cables Work area cables Horizontal runs Fiber optic runs

IEEE 9001 IEEE 9002

Which of the following are quality control standards and are not affiliated with the IEEE committees? IEEE 802.11n IEEE 9001 IEEE 9002 IEEE 802.3

Work area cables

Which of the following are terminated on each end and go from the wall jack in a work are to a computer or other device? Patch Cables Work area cables Horizontal runs Fiber optic runs

Port Number

Which of the following does not refer to transport layer data delivery protocol? UDP (User Datagram Protocol) TCP (Transport Control Protocol) Port Number Well-Known Port

TIA 568B

Which of the following is a UTP wiring standard? 10BaseT runs at 10 megabits per second TIA A568 IEEE 802.3 TIA 568B

169.253.4.185

Which of the following is not a "special" IP address? 10.255.1.1 169.253.4.185 192.168.70.70 127.0.0.1

Ping

Which of the following is not a cable test? Wiremap Continuity Cable Length Ping

Sends out 8 bits at the same time on different pins

Which of the following is not a characteristic of serial ports? Sends out 8 bits at the same time on different pins Uses RS-232 signalling Uses a DB-9 connector Uses DB-25 connector

Connecting switches in a tree structure

Which of the following is not a common network problem? Loops Connecting switches in a tree structure Replay attack Initialization vector attack

166 punch-down block

Which of the following is not a distribution panel? 166 punch-down block 110 punch-down block 66 punch-down block Fiber distribution panel

Cat 6a

Which of the following is not a fire rating for network cables? Plenum Cat 6a Riser PVC

Mesh Bus

Which of the following is not a valid network topology? Bus/Linear Bus Ring Mesh Bus Star Star Bus Mesh

UTP cables < 100 M

Which of the following is not a wired network problem? Attenuation UTP cables < 100 M Jitter Wrong cable type

Table-top rack

Which of the following is not an element of structured cabling? Telecommunication closet Table-top rack Horizontal run Work area

1000BaseSX supports between 100 m and 10 km and can be used with multi-mode or single-mode fiber optic cable

Which of the statements is not true of Gigabit Ethernet? 1000BaseT supports up to 100 meter runs over UTP 1000BaseLX supports between 100 m and 10 km and can be used with multi-mode or single-mode fiber optic cable 1000BaseSX supports run of up to 100 m over multi-mode fiber optic cable 1000BaseSX supports between 100 m and 10 km and can be used with multi-mode or single-mode fiber optic cable

Patch Cables

Which of these cables patch from the front of the patch panel to a switch port or another patch panel? Patch Cables Work area cables Horizontal runs Fiber optic runs

UDP (User Datagram Protocol)

Which protocol is connection-less? UDP (User Datagram Protocol) TCP (Transport Control Protocol) Port Number Well-Known Port

10Base5 connects to a network card with a BNC T-connector

Which statement is not true about early Ethernet? Thick Ethernet Coax is called 10Base5 10Base5 connects to a network card with a BNC T-connector Thick Ethernet must be terminated on both ends of the coaxial cable Thin Ethernet is called 10Base2

100BaseTX supports runs of up to 2 KM

Which statement is not true of 100 megabit Ethernet? 100BaseTX supports runs of up to 2 KM Both 100BaseT and 100BaseTX run over unshielded twisted pair Both 100BaseF and 100BaseFX run over multimode cable Ethernet can run at 100Mbps on fiber or copper

Subnet masks are sent out as one of the fields in the IP packet

Which statement is not true of a subnet mask? Subnet masks are used by a computer to determine the network ID Subnet masks are sent out as one of the fields in the IP packet Subnet masks are made up of contiguous 1s starting at the leftmost (most significant bit) of an IP address Subnet masks are never sent out of a host

10BaseT requires Cat 5a UTP cable. It can run on Cat 3 or higher.

Which statement is true about 10BaseT? 10BaseT runs at 10 megabits per second Maximum distance between the switch and the node is 100 meters 10BaseT requires Cat 5a UTP cable 10BaseT supports a maximum of 1024 nodes per switch

Static IP address

Which symptom is not a result of an IP addressing problem? Duplicate IP address Static IP address Duplicate MAC addresses Incorrect gateway

Laser-mode Fractal-mode

Which two are not classified as Fiber-optic cabling? Laser-mode Multi-mode Fractal-mode Single-mode

Single-mode

Which type of Fiber-optic Cable supports longer run lengths? Laser-mode Multi-mode Fractal-mode Single-mode

Multi-mode

Which type of Fiber-optic cable supports short and moderate distances? Laser-mode Multi-mode Fractal-mode Single-mode

Auto-sensing in the switch will cause the switch port to re-wire itself into a crossover configuration

Why can straight-through cables be used to connect modern switches together? Straight-through cables cannot be used to connect modern switches together Straight-through cables can be used to connect modern switches together but auto-sensing sets the switch port to half duplex, reducing performance by half The switch will re-wire the cable termination so that it becomes a crossover cable Auto-sensing in the switch will cause the switch port to re-wire itself into a crossover configuration