Networking Concepts Custom 1

Question 1 of 20

1. Question

0 point(s)

Fill in the blanks.

The range for Class A IP Address goes from to ; Leading bits are 0xxx

The range for Class B IP Address goes from to ; Leading bits are

The range for Class C IP Address goes from to ; Leading bits are

The range for Class D IP Address goes from to ; Leading bits are

Question 2 of 20

2. Question

0 point(s)

Complete the CIDR notation calculation using this table as a reference:

CIDR for interesting Octed 2	/9	/10	/11	/12	/13	/14	/15	/16
CIDR for interesting Octed 3	/17	/18	/19	/20	/21	/22	/23	/24
CIDR for interesting Octed 4	/25	/26	/27	/28	/29	/30
Magic Number	128	64	32	16	8	4	2	1
Subnet for interesting Octet	128	192	224	240	248	252	254	255

The CIDR Notation /20 = network bits and host bits yielding a subnet address of

Question 3 of 20

3. Question

0 point(s)

Given these CIDR Notations, Calculate the subnet and host counts as well as the subnet. Use the following tables as reference.

CIDR for interesting Octed 2	/9	/10	/11	/12	/13	/14	/15	/16
CIDR for interesting Octed 3	/17	/18	/19	/20	/21	/22	/23	/24
CIDR for interesting Octed 4	/25	/26	/27	/28	/29	/30
Magic Number	128	64	32	16	8	4	2	1
Subnet for interesting Octet	128	192	224	240	248	252	254	255

Powers of 2
2¹⁶	2¹⁵	2¹⁴	2¹³	2¹²	2¹¹	2¹⁰	2⁹	2⁸	2⁷	2⁶	2⁵	2⁴	2³	2²	2¹
65,536	32,768	16,384	8,192	4,096	2,048	1,024	512	256	128	64	32	16	8	4	2

CIDR Address	# Network bits	# Subnet bits	# Host bits	Total # subnets	Total # hosts	Subnet Mask
10.1.1.0/24						{255.255.255.0
192.168.11.0/26
172.16.55.0/21
184.97.23.50/28

Question 4 of 20

4. Question

0 point(s)

Find the magic number, Subnet Id, and Broadcast IP using magic subnetting math (if necessary):

CIDR for interesting Octed 2	/9	/10	/11	/12	/13	/14	/15	/16
CIDR for interesting Octed 3	/17	/18	/19	/20	/21	/22	/23	/24
CIDR for interesting Octed 4	/25	/26	/27	/28	/29	/30
Magic Number	128	64	32	16	8	4	2	1
Subnet for interesting Octet	128	192	224	240	248	252	254	255

Powers of 2
2¹⁶	2¹⁵	2¹⁴	2¹³	2¹²	2¹¹	2¹⁰	2⁹	2⁸	2⁷	2⁶	2⁵	2⁴	2³	2²	2¹
65,536	32,768	16,384	8,192	4,096	2,048	1,024	512	256	128	64	32	16	8	4	2

The magic number is

Octet 1 Octet 2 Octet 3 Octet 4

Mask 255 255 255 240

Action

IP 184 97 23 50

Subnet Id

Broadcast IP

	Octet 1	Octet 2	Octet 3	Octet 4
Mask	255	255	255	240
Action
IP	184	97	23	50
Subnet Id
Broadcast IP

Question 5 of 20

5. Question

0 point(s)

Which Mnemonic can be used to remember the order of layers in the OSI Model?

Phillis Dumped Preston To See Ned Again
Ned Dumped Preston To See Phillis Again
Phillis Dumped Ned To See Preston Again
Oscar Dumped Alice To See Preston Again

Question 6 of 20

6. Question

0 point(s)

TCP packets are identified by four tuples. The four-tuple follows the format:

Destination IP: port and Source IP: port
Source Mac address: port and Destination Mac address: port
Source IP: port and Destination IP: port
Source Mac address and Destination Mac address

Question 7 of 20

7. Question

0 point(s)

Which of these protocols belong in Layer 7: Application layer of the OSI model? (Select all that apply)

PPTP
FTP
SMTP
UDP
HTTP
DNS
IPSec
TCP

Question 8 of 20

8. Question

0 point(s)

Which of these protocols belong in Layer 6: Presentation Layer of the OSI model? (Select all that apply)

TLS
FTP
SMTP
SSL
HTTP
S/MIME
IPSec
PGP

Question 9 of 20

9. Question

0 point(s)

Which of these protocols belong in Layer 5: Session Layer of the OSI model? (Select all that apply)

PPTP
FTP
NetBIOS
SSL
L2TP
S/MIME
IGMP
RTP

Question 10 of 20

10. Question

0 point(s)

Which of these protocols belong in Layer 4: Transport Layer of the OSI model? (Select all that apply)

PPTP
FTP
TCP
SSL
L2TP
S/MIME
IGMP
UDP

Question 11 of 20

11. Question

0 point(s)

Which of these protocols belong in Layer 3: Network Layer of the OSI model? (Select all that apply)

ICMP
PPP
IPX
IPv4
TCP
IPSec
DNS
IGMP

Question 12 of 20

12. Question

0 point(s)

Which of these protocols belong in Layer 2: Data Link Layer of the OSI model? (Select all that apply)

ARP
IPX
Ethernet
TCP
PPP
DNS
IGMP

Question 13 of 20

13. Question

0 point(s)

Which of these protocols belong in Layer 1: Physical Layer of the OSI model? (Select all that apply)

Hubs
PPP
Repeaters
Ethernet
ATM
PPP
Token Ring
IGMP

Question 14 of 20

14. Question

0 point(s)

Which protocol data unit is constructed at the Network Layer?

Data
Segment header – Data
Packet Header – Segment header – Data
Frame header – Packet Header – Segment header – Data – Frame Trailer

Question 15 of 20

15. Question

0 point(s)

Which protocol data unit is constructed at the Transport Layer?

Packet Header – Segment header – Data
Data
Segment header – Data
Frame header – Packet Header – Segment header – Data – Frame Trailer

Question 16 of 20

16. Question

0 point(s)

Which protocol data unit is constructed at the Data Link Layer?

Packet Header – Segment header – Data
Data
Segment header – Data
Frame header – Packet Header – Segment header – Data – Frame Trailer

Question 17 of 20

17. Question

0 point(s)

Which layer uses port numbers to identify specific processes or services on devices?

Network
Session
Data Link
Transport

Question 18 of 20

18. Question

0 point(s)

Which protocol data unit is constructed at the Data Link Layer?

Packet Header – Segment header – Data
Data
Segment header – Data
Frame header – Packet Header – Segment header – Data – Frame Trailer

Question 19 of 20

19. Question

0 point(s)

Which layer uses port numbers to identify specific processes or services on devices?

Network
Session
Data Link
Transport

Question 20 of 20

20. Question

0 point(s)

Which of these describe the Network layer? (Select all that apply)

Uses port numbers to identify specific processes or services on devices
Uses IP addresses
Uses router to forward traffic
Uses MAC address
Traffic is transferred via a switch

Networking Concepts Custom 1

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2. Question

3. Question

Given these CIDR Notations, Calculate the subnet and host counts as well as the subnet. Use the following tables as reference.

4. Question

Find the magic number, Subnet Id, and Broadcast IP using magic subnetting math (if necessary):

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