Test your basic knowledge |

IPV4 Addressing

Subject : it-skills

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. What TCP/IP protocol suite layer corresponds to the transport layer of the OSI model?
Router(config-if)#no ip redirects
Host-to-host
Internet Corporation for Assigned Network Numbers
Class A 1-126; Class B 128-191; Class C 192-223; Class D 224-239; Class E 240-254

2. What is prefix /30 in decimal notation?
198.18.0.0/15
Router(config-if)#arp timeout {seconds}
255.255.255.252
1 Determine how many subnets are required; 2 Determine how many hosts per subnet are required; 3 Determine the subnet mask for each subnet; 4 Calculate the network address for each subnet

3. What is CWR?
Congestion Window Reduced
Method where routers - by responding to ARP requests for IP addresses in different subnets - make themselves available to hosts with no default gateway configured
Regional Internet Registry
Duplicate address checks; Advertise new data-link identifiers; Update the ARP caches of hosts

4. Which IPv4 address range is reserved for IPv6 to IPv4 (6to4) relays (RFC 3068)?
192.88.99.0/24
Echo Reply
Router(config-if)#arp timeout {seconds}
IANA

5. What are the most frequently used options in the IPv4 header?
20 octets
Protocols that include subnet masks in their routing updates
Loose source routing; Strict source routing; Record route; Timestamp
RFC 791

6. What is prefix /26 in decimal notation?
255.255.255.192
1
Windowing
Protocols that don't include subnet masks in their routing updates

7. What field identifies where the TCP encapsulated data fits within the data stream from the sender?
6
Sequence Number
Length of header in words (32-bit)
Don't Fragment

8. Which IPv4 address range is reserved for use in documentation and example code?
169.254.0.0/16
192.0.2.0/24
IP Precedence (3-bit); ToS (4-bit); Reserved (1-bit)
255.255.255.248

9. What is ICMP Type 8?
An ARP request issued by a host with its own IPv4 address as the target address
Each router decrements the TTL
Echo
6

10. What is the the MF-bit in the IPv4 header?
Padding of zeros to ensure that the header ends on a 32-bit boundary
6
More Fragments follow
NIRs

11. What is the purpose of a socket?
More Fragments follow
Uniquely identify every application in the network
46
Maximum Segment Size (MSS)

12. What is the ARP Protocol address length value for IPv4?
4
Network interface
Offset - in units of eight octets - from the beginning of the original header to the beginning of the fragment
All Internet Registries

13. What is LIR?
6
Local Internet Registry
Subtract Header Length field from Total Length field
10.0.0.0/8; 172.16.0.0/12; 192.168.0.0/16

14. Displays the ARP cache of a router
Router#show arp
IANA
47
Address Resolution Protocol

15. What is RST?
47
1-2 Network interface; 3 Internet; 4 Host-to-host; 5-7 Application
Reset
Transmission Control Protocol

16. What is the TTL field in the IPv4 header?
IANA
Host-to-host
Time to Live
Reset

17. What TCP/IP protocol suite layer corresponds to the network layer of the OSI model?
Method where routers - by responding to ARP requests for IP addresses in different subnets - make themselves available to hosts with no default gateway configured
Router(config-if)#no ip proxy-arp
Source Port (16-bit); Destination Port (16-bit); UDP Length (16-bit); Checksum (16-bit)
Internet

18. What is a TCP port number of an application called when it is coupled with the IP address of the server?
Echo Reply
Socket
Router Selection
Subtract Header Length field from Total Length field

19. What is the ARP Operation value for an ARP Reply?
2
RFC 791
Windowing
6

20. Which RFC defines the private IPv4 address ranges?
192.0.2.0/24
255.255.255.128
1
RFC 1918

21. What is proxy ARP?
Both the TCP header and the encapsulated data
More Fragments follow
Destination Unreachable
Method where routers - by responding to ARP requests for IP addresses in different subnets - make themselves available to hosts with no default gateway configured

22. Which IPv4 address range is reserved for loopback testing?
127.0.0.0/8
More Fragments follow
Redirect
Sequence Number + Data payload octets + 1

23. What is the format of the Flags field in the TCP header?
Used by IRDP on some operating systems to discover local routers
NIRs
89
CWR (1-bit); ECE (1-bit); URG (1-bit); ACK (1-bit); PSH (1-bit); RST (1-bit); SYN (1-bit); FIN (1-bit)

24. What is the prerequisite for using the Urgent Pointer field in the TCP header?
4
IANA
Type (8-bit); Code (8-bit); Checksum (16-bit); Variable fields
URG flag set

25. What is the IPv4 Protocol number for GRE?
0.0.0.0/8
IANA
1-2 Network interface; 3 Internet; 4 Host-to-host; 5-7 Application
47

26. What is the ARP Operation value for a Reverse ARP Request?
169.254.0.0/16
NIRs
3
255.255.255.224

27. What TCP/IP protocol suite layer corresponds to the physical and data link layers of the OSI model?
255.255.255.192
Sequence Number + Data payload octets + 1
Network interface
Destination Unreachable

28. Disables the sending of ICMP redirect messages
Maximum Segment Size (MSS)
Router(config-if)#no ip redirects
Used by a host to obtain the IP address associated with another host's MAC address
Address Resolution Protocol

29. What is FIN?
Subtract Header Length field from Total Length field
Final
Length of header in words (32-bit)
Acknowledgement

30. What are the private IPv4 address ranges?
CWR (1-bit); ECE (1-bit); URG (1-bit); ACK (1-bit); PSH (1-bit); RST (1-bit); SYN (1-bit); FIN (1-bit)
Internet Protocol
20 octets
10.0.0.0/8; 172.16.0.0/12; 192.168.0.0/16

31. What is the value of the TCP Reserved field?
0
RFC 1918
1 Determine how many subnets are required; 2 Determine how many hosts per subnet are required; 3 Determine the subnet mask for each subnet; 4 Calculate the network address for each subnet
LIRs

32. How can the receiver determine the size of a packet's data payload based on the IPv4 header?
8
255.255.255.248
Subtract Header Length field from Total Length field
Used by routers to notify hosts of another router on the data link that should be used for a particular destination

33. What is the IPv4 Protocol number for ICMP?
Acknowledgement
1
Class A 1-126; Class B 128-191; Class C 192-223; Class D 224-239; Class E 240-254
Router Advertisement

34. What is the first octet rule for IPv4 address classes in binary?
1
Class A 0; Class B 10; Class C 110; Class D 1110; Class E 1111
1
Windowing

35. Which RFC defines the special use IPv4 address ranges?
Router#show arp
RFC 3330
ICMP Router Discovery Protocol
20 octets

36. What is the IPv4 protocol number for UDP?
8
Uniquely identify every application in the network
Application
17

37. What is ICMP Type 5?
Redirect
Class A 0; Class B 10; Class C 110; Class D 1110; Class E 1111
Each router decrements the TTL
RIRs

38. What is the minimum length of an IPv4 header?
20 octets
8
Acknowledgements - checksums and timers
LIRs

39. What are the IP Precedence values?
IANA
Internet Protocol
0 Routine; 1 Priority; 2 Immediate; 3 Flash; 4 Flash Override; 5 Critical; 6 Internetwork Control; 7 Network Control
Congestion Window Reduced

40. Who allocates IP address space and AS numbers to RIRs?
IANA
20 octets
Network interface
255.255.255.252

41. What is the Fragment Offset field in the IPv4 header?
Local Internet Registry
Offset - in units of eight octets - from the beginning of the original header to the beginning of the fragment
IP Precedence (3-bit); ToS (4-bit); Reserved (1-bit)
Used by IRDP on some operating systems to discover local routers

42. What are classless routing protocols?
127.0.0.0/8
Protocols that include subnet masks in their routing updates
Regional Internet Registry
Congestion Window Reduced

43. What is ICMP Type 11?
Time Exceeded
Don't Fragment
Windowing
Length of header in words (32-bit)

44. What is covered by the TCP Checksum field?
Both the TCP header and the encapsulated data
Destination Unreachable
All Internet Registries
RFC 791

45. What is added after the Option field in the TCP header?
Time Exceeded
192.88.99.0/24
Acknowledgement
Padding of zeros to ensure that the header ends on a 32-bit boundary

46. What is NIR?
Congestion Window Reduced
Subtract Header Length field from Total Length field
National Internet Registry
255.255.255.248

47. Disables proxy ARP on all interfaces
6
Router(config)#ip arp proxy disable
Internet Control Message Protocol
2

48. What is the format of the ToS byte in the IPv4 header?
IP Precedence (3-bit); ToS (4-bit); Reserved (1-bit)
Router(config-if)#arp timeout {seconds}
Internet Corporation for Assigned Network Numbers
Reset

49. Who group public IPv4 address space by major geographic region?
Mostly large ISPs - enterprises - or academic institutions
ICANN and IANA
Echo
Uniquely identify every application in the network

50. What is the function of ICMP redirect messages?
Regional Internet Registry
Acknowledgements - checksums and timers
Used by routers to notify hosts of another router on the data link that should be used for a particular destination
Router#debug arp

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Major Subjects
Tests & Exams AP CLEP DSST GRE SAT GMAT	Certifications CISSP go to https://www.isc2.org/ PMP ITIL RHCE MCTS More...	IT Skills Android Programming Data Modeling Objective C Programming Basic Python Programming Adobe Illustrator More...	Business Skills Advertising Techniques Business Accounting Basics Business Strategy Human Resource Management Marketing Basics More...
Soft Skills Body Language People Skills Public Speaking Persuasion Job Hunting And Resumes More...	Vocabulary GRE Vocab SAT Vocab TOEFL Essential Vocab Basic English Words For All Global Words You Should Know Business English More...	Languages AP German Vocab AP Latin Vocab SAT Subject Test: French Italian Survival Norwegian Survival More...	Engineering Audio Engineering Computer Science Engineering Aerospace Engineering Chemical Engineering Structural Engineering More...
Health Sciences Basic Nursing Skills Health Science Language Fundamentals Veterinary Technology Medical Language Cardiology Clinical Surgery More...	English Grammar Fundamentals Literary And Rhetorical Vocab Elements Of Style Vocab Introduction To English Major Complete Advanced Sentences Literature Homonyms More...	Math Algebra Formulas Basic Arithmetic: Measurements Metric Conversions Geometric Properties Important Math Facts Number Sense Vocab Business Math More...	Other Major Subjects Science Economics History Law Performing-arts Cooking Logic & Reasoning Trivia

Test your basic knowledge |

IPV4 Addressing

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests

Major Subjects

Tests & Exams

Certifications

IT Skills

Business Skills

Soft Skills

Vocabulary

Languages

Engineering

Health Sciences

English

Math

Other Major Subjects

Browse all subjects

Browse all tests

Most popular tests