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Question 1 of 60 Quiz ID: q1

When was ARPANET first funded for experimental use?

1969

1975

1983

1990

Question 2 of 60 Quiz ID: q2

In which year did ARPANET become operational?

1969

1975

1983

1990

Question 3 of 60 Quiz ID: q3

When was TCP/IP adopted as a military standard?

1975

1983

1990

1995

Question 4 of 60 Quiz ID: q4

What does TCP stand for in TCP/IP?

Transfer Control Protocol

Transmission Control Protocol

Transport Communication Protocol

Terminal Control Protocol

Question 5 of 60 Quiz ID: q5

Which of the following is NOT a key feature of TCP/IP?

Open protocol standards

Independence from specific physical network hardware

Common addressing scheme

Proprietary encryption standards

Question 6 of 60 Quiz ID: q6

TCP/IP protocol specifications are published as:

Internet Engineering Task Force documents

Requests for Comments (RFCs)

World Wide Web Consortium standards

International Organization for Standardization documents

Question 7 of 60 Quiz ID: q7

In the Internet networking model, how many network protocols are there at the network layer?

One (IP)

Two (IP and IPv6)

Three (IP, IPv6, and ICMP)

Multiple proprietary protocols

Question 8 of 60 Quiz ID: q8

Which protocol is responsible for error reporting and router signaling in the network layer?

IP protocol

ICMP protocol

TCP protocol

UDP protocol

Question 9 of 60 Quiz ID: q9

How many bits are used for an IP address?

16 bits

24 bits

32 bits

64 bits

Question 10 of 60 Quiz ID: q10

In dotted decimal notation, each number corresponds to how many bits?

4 bits

8 bits

16 bits

32 bits

Question 11 of 60 Quiz ID: q11

What is the decimal equivalent of the IP address 223.1.7.4?

3741386500

3741386400

3741386600

3741386700

Question 12 of 60 Quiz ID: q12

What is an interface in IP networking?

A software application

A connection between host/router and physical link

A type of IP address

A routing protocol

Question 13 of 60 Quiz ID: q13

How many interfaces do routers typically have?

Always one

Usually one, but may have multiple

Multiple interfaces

No interfaces

Question 14 of 60 Quiz ID: q14

An IP address consists of which two parts?

Source part and destination part

Network part and host part

Router part and host part

Public part and private part

Question 15 of 60 Quiz ID: q15

Hosts with the same network part of their IP address:

Must use the same router

Are on the same network and can reach each other without going through a router

Cannot communicate with each other

Must be in the same physical location

Question 16 of 60 Quiz ID: q16

In IP addressing, if a network has 10 network bits, how many host bits are there?

10 bits

20 bits

22 bits

24 bits

Question 17 of 60 Quiz ID: q17

A network with 24 network bits can accommodate approximately how many host addresses?

24 hosts

256 hosts

4096 hosts

65536 hosts

Question 18 of 60 Quiz ID: q18

What is the relationship between network size and network/host bit allocation?

Small networks have more host bits

Large networks have more host bits, small networks have more network bits

All networks use the same bit allocation

Network size doesn't affect bit allocation

Question 19 of 60 Quiz ID: q19

In the network example with three networks (223.1.1.xx, 223.1.2.xx, 223.1.3.xx), how many bits are used for the network part?

16 bits

24 bits

28 bits

32 bits

Question 20 of 60 Quiz ID: q20

Which class of IP address ranges from 1.0.0.0 to 127.255.255.255?

Class A

Class B

Class C

Class D

Question 21 of 60 Quiz ID: q21

What is the IP address range for Class B networks?

1.0.0.0 to 127.255.255.255

128.0.0.0 to 191.255.255.255

192.0.0.0 to 223.255.255.255

224.0.0.0 to 239.255.255.255

Question 22 of 60 Quiz ID: q22

Class D IP addresses are used for:

Small networks

Large networks

Medium networks

Multicast addressing

Question 23 of 60 Quiz ID: q23

Why is classful addressing considered obsolete?

It's too complex to implement

It causes inefficient use of address space and address space exhaustion

It doesn't support routing protocols

It's incompatible with modern hardware

Question 24 of 60 Quiz ID: q24

What does CIDR stand for?

Classless Internal Domain Routing

Classless InterDomain Routing

Centralized Internet Domain Routing

Controlled Internet Data Routing

Question 25 of 60 Quiz ID: q25

In CIDR notation, what does the '/x' represent in an address like a.b.c.d/x?

Number of host bits

Number of network bits

Number of router hops

Number of subnets

Question 26 of 60 Quiz ID: q26

What does the address 200.23.16.0/23 represent?

A single host address

A network with 23 host bits

A network with 23 network bits and 9 host bits

A multicast address

Question 27 of 60 Quiz ID: q27

In a network mask, the network part is set to:

All zeros

All ones

Alternating ones and zeros

Random values

Question 28 of 60 Quiz ID: q28

What is the network mask for a /28 network?

255.255.255.0

255.255.255.240

255.255.255.248

255.255.255.252

Question 29 of 60 Quiz ID: q29

The broadcast address in a network is:

The first address where the network part is all 1s

The last address where the host part is all 1s

The middle address in the network range

Any address with all zeros in the host part

Question 30 of 60 Quiz ID: q30

Can the broadcast address be assigned to a host?

Yes, it's the preferred address for servers

No, it's reserved for broadcast packets

Yes, but only for routers

Only in Class C networks

Question 31 of 60 Quiz ID: q31

How many usable host addresses are available in a /30 network?

Question 32 of 60 Quiz ID: q32

A /24 network can accommodate how many hosts according to the network mask table?

254

255

256

Question 33 of 60 Quiz ID: q33

Which of the following is NOT a method for a host to get an IP address?

Hard-coded by system admin in a file

DHCP (Dynamic Host Configuration Protocol)

Assigned by ISP when dialing up

Randomly generated by the network card

Question 34 of 60 Quiz ID: q34

What does DHCP stand for?

Dynamic Host Control Protocol

Dynamic Host Configuration Protocol

Distributed Host Configuration Protocol

Direct Host Communication Protocol

Question 35 of 60 Quiz ID: q35

How does a network typically get its block of IP addresses?

Directly from ICANN

From its Internet Service Provider (ISP)

Through random allocation

From the local government

Question 36 of 60 Quiz ID: q36

What does APNIC represent in IP address allocation?

A routing protocol

An Internet Service Provider

A Regional Internet Registry

A network security organization

Question 37 of 60 Quiz ID: q37

What does ICANN stand for?

Internet Control and Administration Network

International Computer and Network Names

Internet Corporation for Assigned Names and Numbers

International Council for Advanced Network Names

Question 38 of 60 Quiz ID: q38

In hierarchical addressing, what advantage does route aggregation provide?

Faster processing speeds

Multiple networks can be routed by one entry

Better security

Lower power consumption

Question 39 of 60 Quiz ID: q39

When an IP datagram travels from source to destination, what happens to the datagram itself?

It gets modified at each router

It remains unchanged

It gets compressed

It gets encrypted

Question 40 of 60 Quiz ID: q40

In the forwarding table example, if host A wants to send data to a host in network 223.1.2.x, what is the next router?

Direct connection (none)

223.1.1.4

223.1.2.9

223.1.3.27

Question 41 of 60 Quiz ID: q41

When host A sends data to host B (both on network 223.1.1.x), what happens?

Data goes through a router

Link layer sends datagram directly to B

Data is dropped

Data goes to the ISP first

Question 42 of 60 Quiz ID: q42

What problem does ARP (Address Resolution Protocol) solve?

Converting IP addresses to domain names

Finding the MAC address when you know the IP address

Routing packets between networks

Assigning IP addresses dynamically

Question 43 of 60 Quiz ID: q43

How does ARP work?

Sends a unicast frame to the specific host

Sends a broadcast frame asking 'who has this IP address?'

Queries a central database

Uses DNS lookup

Question 44 of 60 Quiz ID: q44

Which organization assigned the private IP address blocks?

ICANN

IANA (Internet Assigned Numbers Authority)

IEEE

ITU

Question 45 of 60 Quiz ID: q45

What is the Class A private IP address range?

192.168.0.0 to 192.168.255.255

172.16.0.0 to 172.31.255.255

10.0.0.0 to 10.255.255.255

127.0.0.0 to 127.255.255.255

Question 46 of 60 Quiz ID: q46

What is the Class B private IP address range?

10.0.0.0 to 10.255.255.255

172.16.0.0 to 172.31.255.255

192.168.0.0 to 192.168.255.255

169.254.0.0 to 169.254.255.255

Question 47 of 60 Quiz ID: q47

What is the Class C private IP address range?

10.0.0.0 to 10.255.255.255

172.16.0.0 to 172.31.255.255

192.168.0.0 to 192.168.255.255

224.0.0.0 to 239.255.255.255

Question 48 of 60 Quiz ID: q48

What is true about private IP addresses?

They are globally unique

They are routable on the Internet

They are non-routable and only unique within a given private network

They require registration with IANA

Question 49 of 60 Quiz ID: q49

What problem does NAT (Network Address Translation) solve?

Slow network speeds

Limited number of IPv4 addresses

Network security vulnerabilities

Routing inefficiencies

Question 50 of 60 Quiz ID: q50

In a NAT setup, what type of IP addresses are assigned to hosts on the local network?

Public IP addresses

Private IP addresses

Multicast addresses

Loopback addresses

Question 51 of 60 Quiz ID: q51

When datagrams leave a NAT-enabled local network, what happens to the source address?

It remains the same private address

It is changed to the single public NAT IP address

It is encrypted

It is removed entirely

Question 52 of 60 Quiz ID: q52

What is an advantage of NAT regarding ISP changes?

Requires notification of all external networks

Can change ISP without changing addresses of devices in local network

Automatically updates all Internet databases

Requires reconfiguration of all local devices

Question 53 of 60 Quiz ID: q53

From a security perspective, what is true about devices behind NAT?

They are fully exposed to the Internet

They are not explicitly addressable or visible by the outside world

They have enhanced routing capabilities

They can only communicate with other NAT devices

Question 54 of 60 Quiz ID: q54

Which of the following protocols is mentioned as part of the Internet Network layer for path selection?

TCP and UDP

RIP, OSPF, BGP

HTTP and FTP

SMTP and POP3

Question 55 of 60 Quiz ID: q55

In the network example, router 223.1.1.4 has how many interfaces?

One

Two

Three

Four

Question 56 of 60 Quiz ID: q56

What happens when a datagram arrives at router 223.1.1.4 destined for 223.1.2.2?

It's dropped as unreachable

It's forwarded to another router

It's sent directly to 223.1.2.2 via interface 223.1.2.9

It's broadcast to all networks

Question 57 of 60 Quiz ID: q57

In CIDR, the address format a.b.c.d/x allows for:

Fixed-length network portions only

Network portion of arbitrary length

Only Class A, B, or C networks

Maximum of 24-bit network portions

Question 58 of 60 Quiz ID: q58

According to the lecture, why was classful addressing inefficient?

It was too complex to understand

Class B networks were allocated enough addresses for 65K hosts even if only 2K hosts were needed

It didn't support enough network classes

It was incompatible with routing protocols

Question 59 of 60 Quiz ID: q59

In the Internet networking model, networks are interconnected by:

Switches

Hubs

Routers

Bridges

Question 60 of 60 Quiz ID: q60

What is the hexadecimal representation of the IP address 223.1.7.4?

DF010704

DF010705

DE010704

DF020704

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