Network Quiz

What is the minimum number of routers that can be used to connect 4 networks?

1

A server can be defined as:

1. A computer dedicated to running one or more server programs 2. A computer that has fast CPU, large memory, and powerful operating system 3. A program that waits passively for communication

Which of the following is an IPv6 address in proper notation.

1. FE80::2AA:FF:FE9A:4CA2 2. 2607:f8b0:4004:806::1013 3. FE80:0:0:0:02AA:00FF:FE9A:4CA2 4. ABCD::4

What are the three parts of an IPv6 address?

1. Global Prefix 2. Subnet 3. Interface

Which of the following incompatibilities prevent two networks from simply being directly connected (bridged)?

1. Network Hardware (Layer 1) 2. Addresses (Layer 3) 3. Frames (Layer 2)

Which of the following could be a host? (look up the product if you are unsure of the features)

1. Samsung UHD 4K HU8550 Series Smart TV 2. Apple iPhone 6 Plus

Which of the following statements describe a connection-oriented interaction?

1. The pair uses the connection to exchange data 2. A pair of applications request a connection to each other

HTML can be defined as:

1. a markup language 2. declarative 3. a representation standard

Recent trends in computer networks and the Internet include:

1. cloud computing 2. sensor networks 3. high-quality teleconferencing 4. social networking applications 5. traditional communications systems adopting Internet Technology

As the Internet experienced exponential growth over the past 25 years, it changed in the following ways:

1. focus on new applications 2. increase in communication speeds

In a three-tier client/server architecture, the following types of machines are found:

1. middle-tier/ gateway server 2. backend server 3. client/user machine

In the 1970s, the Internet was:

1. proposed by Vinton Cerf and Robert Kahn 2. a concept 3. a set of standards 4. a revolution in computer networking

Traditional business applications of audio services are:

1. telemarketing 2. voicemail 3. telephony 4. audio conferencing

IP Addresses are: (select all that apply)

1. uniform 2. independent from MAC addresses 3. unique

Multimedia is Data that contains a combination of

1. video 2. audio 3. graphics 4. text

Your computer has been configured in the following way: 172.16.128.67 mask 255.255.255.192 How would you represent the network you are on in CIDR notation?

172.16.128.64/26

How many primary classes did the original classful IP addressing scheme divide IPv4 into?

3

How many different IP addresses (although usable is quite less) can IPv4 theoretically accommodate?

4294967296

The TCP/IP protocol suite that is widely used today corresponds to a model that contains how many layers?

5

The Advanced Research Projects Agency, an agency of the US. Department of Defense, gathered researchers and contractors together to produce a working data network known as:

ARPANET

Layer 5

Applications

192.168.0.255

Directed Broadcast Address

What does DNS stand for?

Domain Name System

Changing IPv4 to IPv6 is easy as it only requires a change to one part of the Internet

False

Computer networking is easy for a beginner because there is a single underlying theory that explains the relationship among all parts.

False

In the real world, a p2p system enables extremely large traffic to one computer because N can be extremely small.

False

Internet protocol software shows the detailed information of the physical network connection such as the IP address, MAC address, DNS server, default router, and the route a packet takes.

False

No computer can run a web server unless the computer's domain name starts with www.

False

Protocol implementations follow the layering model by passing the input from a protocol in one layer to the output of a protocol in the next layer

False

The best way to form large networks is to simply interconnect the wires from one to another

False

There is only one internet, THE Internet.

False

IPv4 uses 32-bit addresses and ____ uses 128-bit addresses.

IPv6

Layer 3

Internet (IP)

How does a client identify a server on the Internet?

Internet Protocol address = Computer Protocol port number = Service

In 1980, the Internet was a research project that involved:

Less than 100 sites

255.255.255.255

Limited Broadcast Address

127.0.0.1

Loopback Address

192.168.0.0

Network Address

Layer 2

Network Interface (MAC)

The World Wide Web is:

One of many services in use on the Internet

Layer 1

Physical

The primary example of communications software that enables clients and servers to interoperate is:

TCP/IP

0.0.0.0

This Computer

Layer 4

Transport(TCP)

A client can access multiple services but typically contacts only one remote server at a time.

True

A pair of protocols in adjacent layers pass a pointer to the packet rather than create a new copy.

True

A router must have multiple IP addresses to "route" packets from one network to another.

True

A server can act as a client.

True

An email program using SMTP requests a mail exchange (MX) record from the DNS database. An IP address is returned in response.

True

Because the Internet tolerates heterogeneity, engineers can experiment with new networking technologies without disrupting existing networks.

True

Boiling it down to its core definition, server software consists of a program dedicated to providing a service.

True

Early communications networks such as the telegraph and telephone systems use circuits to send information.

True

FTP handles both uploading and downloading of any type of data.

True

For communication to be successful across networks, all entities must agree on how information will be represented and communicated.

True

If only one server provides a given service, the network connection that connects the server to the Internet can become a bottleneck.

True

In an IPv6 address, the interface address/suffix is always constant and of length 64bits.

True

In terms of the client-server model, a browser is a client that extracts a server name from a URL and contacts the server.

True

In the client-server paradigm, the server software waits passively for contact, while the client software actively initiates contact.

True

In the thin client model, the server handles more of the work relative to the thick client model.

True

Multicasting still uses Class D addresses for delivery to a set or group of computers on the same network

True

Multiple protocols designed to work together in a complete, cooperative set are called a suite.

True

On a single network, two computers cannot have the same IP address

True

Packet switching is the basis for the modern Internet.

True

Protocols in a suite are furthermore collected into a unified whole known as a layering model.

True

Technology is woven into the fabric of business and is transforming competition around the world.

True

The name resolution process involves a resolver that forms a DNS request message and waits for a DNS reply message

True

The primary motivation for early computer networks was resource sharing due to computers being large and expensive.

True

The term protocol refers to a specification for network communications.

True

The trend towards faster and cheaper services continues today and is particularly notable.

True

The volume of communications traffic being transported over business networks is increasing.

True

Using multiple routers improves reliability and avoids a single point of failure by sending traffic along an alternate path if a link fails.

True

When a request arrives at a server, software on the server uses the port number to determine which application on the server computer should handle the request.

True

Can a computer operate multiple clients and even multiple copies of a single application?

Yes

Can a computer run multiple server programs?

Yes

Can consolidating multiple server programs on a single computer reduce cost without significantly reducing performance?

Yes

Which IP addresses are properly formatted in dotted decimal notation?

a. 172.16.45.222 b. 10.9.8.7 c. 255.255.255.255

As data passes down through the protocol layers on the sending computer, headers are:

added

What handles initiating contact with and accepting contact from a remote computer?

application programs

The number of computers, terminals and mobile devices used around the world is in the:

billions

A browser can significantly reduce download time by saving images in a _____ .

cache

In the original architecture of Internet email service, what component acted as both a client and server?

mail transfer application

If a ______ architecture is implemented in server code, data is distributed first come-first serve among a set of N servers.

peer-to-peer

Before sending a request to the server, an FTP client allocates a protocol:

port

The MIME standard encodes non-text attachments as _______.

printable letters

What is/are the basic component(s) used for interconnecting heterogeneous networks?

router

Consider the classful addressing scheme: In the following Class C IP address (written in binary for your benefit) each part has a name. What are they? IP address: 11000000.10101000.00000000.00000001 1100----.--------.--------.-------- class identifier ----0000.10101000.00000000.-------- prefix or network --------.--------.-------.00000001 ------- ?

suffix or host

The amount of work done on a client vs. a server varies across server software. In which model is application processing, graphic rendering and storage all offloaded from the server to the client?

thick client

An IP address is a ____ ____ number assigned to a host and used for all communication with the host.

unique binary

protocol name

vvv

computer name

www

individual computer

xxx

port

xxx

document name

yyy

group or organization

yyy

parameters

zzz

top-level domain

zzz