Networking+ Midterm Study Pt.2

What is the range of decimal values in each octet of an IPv4 address?

0 to 255

When a multispeed, auto-sensing 100BaseT NIC connects to a 10BaseT Ethernet hub, at what speed will the NIC function?

10 Mbps

What is the maximum cable length on a segment of a 1000BaseT network?

100 meters

Of all the Gigabit Ethernet IEEE standards detailed in the chapter, which one maintains a signal over the greatest distance?

1000BaseLX

What version of Gigabit Ethernet is being positioned as the Ethernet backbone of the future?

1000BaseLX

Which version of Gigabit Ethernet is published under the 802.3ab standard?

1000BaseT

The __________ version of Gigabit Ethernet, published under the 802.3z standard, is divided into a series of standards, with names such as 1000BaseSX and 1000BaseLX.

1000BaseX

In 100BaseT, what is the maximum number of nodes per hub/switch?

1024

Which is the least expensive and most popular 10 GbE media type?

10GBaseLR

Which 10 GbE standard features a multimode fiber type?

10GBaseSR

What is the name of the IEEE standard for 10 GbE running on twisted pair cabling?

10GBaseT

Which wavelength is used on 10GBaseLW fiber-optic cabling?

1310

If you borrow 4 bits in a class C network, how many usable hosts will be on each subnet?

14

Which port is used to receive e-mail messages from e-mail servers (IMAP4)?

143

What wavelength is used on a 10GBaseEy network?

1550

Which IP address is valid for an individual host expressed in dotted decimal notation?

215.233.32.91

Which formula would you use to arrive at the number of hosts on a subnet?

2^h-2

Which formula would you use to calculate the number of new subnets?

2^n

How many binary digits are in an IPv4 address?

32

How long is a subnet mask?

32 bits

Which port do HTTP Web servers use?

80

What wavelength is used on 10GBaseSW fiber-optic cabling?

850 nm

What wavelength is used on a 10GBaseSR network?

850 nm

Which statement about subnet masks is true?

All machines on the same network have the same subnet mask

Which method of sending a packet allows every computer on the LAN to hear the message?

Broadcast

The specification for 100BaseTX (100BaseT) calls for UTP cabling using __________ or better rated cabling.

CAT 5

If the first decimal value of an IP address is between 128 and 191, to what IP class does the network belong?

Class B

Which statement best describes a Class E address ID?

Class E is considered to be experimental.

Which task is performed by an ISP when it takes a block of addresses, subnets the block into multiple subnets, and then passes out the smaller individual subnets to customers?

Classless Inter-Domain Routing (CIDR)

Which tool automatically assigns an IP address whenever a computer connects to the network?

DHCP

How many subnets can you create if you borrow 3 bits in a class C network?

Eight

What is the universal MAC address for broadcast?

FF-FF-FF-FF-FF-FF

(True or False)A connection created using Angled Physical Contact (APC) connectors degrades from multiple insertions.

False

(True or False)All NICs today run half-duplex.

False

(True or False)The Ethernet community would like to position 1000BaseSX as the Ethernet backbone of the future.

False

(True or False)The Internet Protocol (IP) works at the Link layer.

False

(True or False)The part of the IP address that is the same for all computers on a network is called the host ID.

False

(True or False)Twisting the fiber is a popular action with fiber-optic cables.

False

(True or False)User Datagram Protocol (UDP) is a connection-oriented protocol.

False

(True or False)When a computer gives itself an Automatic Private IP Address (APIPA), it also includes a valid default gateway address.

False

(True or False)When you want to be positive that the data moving between two systems gets there in good order, use a connectionless application.

False

Which term refers to the 100-Mbps standards, even though there are now newer versions of Ethernet available?

Fast Ethernet

What general type of cabling is a technician most likely to use today when installing Ethernet cabling in areas with high electrical interference?

Fiber-optic

Which protocol uses TCP as its transport layer protocol?

HTTP

The "R" in the standard 10GBaseSR stands for which type of signaling?

LAN

What is the most common connector used in a 1000BaseSX network?

LC

Which method of sending a packet allows a single computer to send a packet to a group of interested computers?

Multicast

What type of fiber-optic cabling and connectors does a 100BaseFX network use?

Multimode with ST or SC connectors

Manufacturers have accommodated the need for switches to connect to a variety of 10 GbE connector types by devising which solution?

Multisource agreements

To what layer of the OSI model does the TCP/IP model's Internet layer roughly correspond?

Network

IANA has grown dramatically and now oversees five __________ that parcel out IP addresses to large ISPs and major corporations.

Regional Internet Registries (RIRs)

Which very high-speed fiber network was already in place and being used for wide area networking (WAN) transmissions, before the IEEE developed the 10 GbE Ethernet standards?

SONET

The "W" in the standard 10GBaseSW stands for which type of signaling?

SONET/WAN

What type of fiber-optic cable is used in a 1000BaseLX network?

Single-mode fiber

Which switch and network equipment modular transceivers have replaced gigabit interface converters (GBICs) as the modular connector of choice?

Small form-factor pluggable (SFP)

Which protocol is connection-oriented?

TCP

What is the de facto protocol suite of the Internet?

TCP/IP

What network protocol do Apple systems use today?

TCP/IP

(True or False)1000BaseLX connectors look similar to1000BaseSX connectors.

True

(True or False)1000BaseT connections and ports look exactly like the ones on a 10BaseT or 100BaseT network.

True

(True or False)A very early protocol called Bootstrap Protocol (BOOTP) preceded DHCP in providing dynamic IP addressing.

True

(True or False)All modern NICs are multispeed and auto-sensing.

True

(True or False)Domain Name System (DNS) uses the User Datagram Protocol (UDP).

True

(True or False)Subnet masks are always 32 binary digits long.

True

(True or False)Systems that use only static IP addressing can never have DHCP problems.

True

(True or False)The Mechanical Transfer Registered Jack (MT-RJ) is a type of Small Form Factor (SFF) connector.

True

(True or False)The first binary octet of a Class C IP address always begins with 110 (110xxxxx).

True

(True or False)Transmission Control Protocol (TCP) chops up data into segments.

True

(True or False)When a DHCP client boots up, it automatically sends out a special DHCP Discover message using the broadcast address.

True

(True or False)When a technician installs a range of IP addresses to be handed out by a router or server, this is called a DHCP scope.

True

(True or False)With full-duplex, a NIC can send and receive data at the same time.

True

Which protocol do Domain Name System (DNS) and Dynamic Host Configuration Protocol (DHCP) use?

UDP

Which method of sending a packet allows one computer to send a message directly to another user?

Unicast

The vast majority of network rollouts in offices use a base of 1000BaseT connections, or __________, as you'll hear them called.

drops

A Class C network block uses the __________ octets to define only the network ID.

first three

No individual computer can have an IP address that ends with 0 because that is reserved for the ___________________.

network ID

What command can you use to tell a device to send packets to itself?

ping 127.0.0.1

ping 127.0.0.1

ping 127.0.0.1

The NIC and the attached __________ determine full- or half-duplex during the auto-negotiation process.

switch

The different colors of the laser signals feature different __________.

wavelengths