IP Addressing and Networking Quiz Answers

Answered using GPT-4o mini by AI Answer Generator

Question:
  1. Which computers would be able to communicate directly (without any routers involved): A) 192.168.0.5/26 and 192.168.0.100 B) 10.5.5.1/24 and 10.5.5.100/25 C) 10.10.0.17/22 and 10.10.1.30/23 D) 192.168.17.15/29 and 192.168.17.20/28
  2. There’s an IP address 15.242.55.62 with a subnet mask 255.255.255.224 (/27). Please choose all valid host address range within the same subnet. A) 15.242.55.33-15.242.55.63 B) 15.242.55.33-15.242.55.62 C) 15.242.55.31-15.242.55.62 D) 15.242.55.32-15.242.55.63
  3. Select which of the following are 'Public IP addresses': A) 10.110.50.37 B) 172.28.73.21 C) 11.63.72.21 D) 172.168.254.2 E) 192.168.0.1
  4. A network ready device is directly connected to a MikroTik RouterBOARD with a correct U.T.P. RJ45 functioning cable. The device is configured with an IPv4 address of 192.168.100.70 using a subnet mask of 255.255.255.252. What will be a valid IPv4 address for the RouterBOARD 750 for a successful connection to the device? A) 192.168.100.69/255.255.255.252 B) 192.168.100.68/255.255.255.252 C) 192.168.100.70/255.255.255.252 D) 192.168.100.71/255.255.255.252
  5. What protocol does ping use? A) ICMP B) TCP C) ARP D) UDP
  6. In MikroTik RouterOS, Layer-3 communication between 2 hosts can be achieved by using an address subnet of: A) /31 B) /29 C) /30 D) /32
  7. Select valid MAC-address A) 00:00:5E:80:EE:B0 B) AEC8:21F1:AA44:54FF:1111:DDAE:0212:1201 C) G2:60:CF:21:99:H0 D) 192.168.0.0/16
  8. Which of the following are valid IP addresses? A) 10.10.14.0 B) 192.168.13.255 C) 1.27.14.254 D) 192.168.256.1
  9. What is term for the hardware coded address found on an interface? A) Interface Address B) IP Address C) MAC Address D) FQDN Address
  10. You have a router with configuration
  • Public IP :202.168.125.45/24
  • Default gateway:202.168.125.1
  • DNS server: 248.115.148.136, 248.115.148.137
  • Local IP: 192.168.2.1/24

Mark the correct configuration on client PC to access to the Internet A) IP:192.168.2.115/24 gateway: 192.168.2.1 B) IP:192.168.2.2/24 gateway:202.168.125.45 C) IP:192.168.0.1/24 gateway:192.168.2.1 D) IP:192.168.2.253/24 gateway:202.168.0.1 E) IP:192.168.1.223/24 gateway:248.115.148.136 11. MAC layer by OSI model is also known as A) Layer 7 B) Layer 1 C) Layer 6 D) Layer 3 E) Layer 2 12. The network address is A) None of the mentioned B) The first usable address of the subnet C) The last address of the subnet D) The first address of the subnet 13. Collisions are possible in full-duplex Ethernet networks

  1. The basic unit of a physical network (OSI Layer 1) is the: A) Bit B) Byte C) Header D) Frame
  2. How many usable IP addresses are there in a 20-bit subnet? A) 2046 B) 2047 C) 4096 D) 2048 E) 4094
  3. Which of the following is NOT a valid MAC Address? A) 80:GF:AA:67:13:5D B) EA:BA:AA:EE:FF:CB C) 13:16:86:53:89:43 D) 88:0C:00:99:5F:EF E) 95:B5:DD:EE:78:8A
  4. Which of the following protocols / port s are used for SNMP. (Simple Network Managemnt Protocol) A) TCP 25 B) TCP 123 C) TCP 162 D) UDP 162 E) TCP 161 F) UDP 161
  5. Select valid subnet masks: A) 255.255.192.255 B) 255.255.224.0 C) 192.0.0.0 D) 255.192.0.0
  6. How many IP addresses can one find in the header of an IP packet? A) 2 B) 3 C) 1 D) 4
  7. How many layers does Open Systems Interconnection model have? A) 12 B) 6 C) 9 D) 5 E) 7
Answer:

Here are the answers to your questions:

  1. Which computers would be able to communicate directly (without any routers involved):

    • A) 192.168.0.5/26 and 192.168.0.100 - No (Different subnets)
    • B) 10.5.5.1/24 and 10.5.5.100/25 - Yes (Same subnet)
    • C) 10.10.0.17/22 and 10.10.1.30/23 - Yes (Same subnet)
    • D) 192.168.17.15/29 and 192.168.17.20/28 - No (Different subnets)

    Answer: B and C

  2. Valid host address range within the same subnet for 15.242.55.62/27:

    • A) 15.242.55.33-15.242.55.63 - No (Invalid range)
    • B) 15.242.55.33-15.242.55.62 - Yes (Valid range)
    • C) 15.242.55.31-15.242.55.62 - No (Invalid range)
    • D) 15.242.55.32-15.242.55.63 - No (Invalid range)

    Answer: B

  3. Select which of the following are 'Public IP addresses':

    • A) 10.110.50.37 - No (Private IP)
    • B) 172.28.73.21 - No (Private IP)
    • C) 11.63.72.21 - Yes (Public IP)
    • D) 172.168.254.2 - No (Invalid private range)
    • E) 192.168.0.1 - No (Private IP)

    Answer: C

  4. Valid IPv4 address for the RouterBOARD 750 for a successful connection:

    • A) 192.168.100.69/255.255.255.252 - Yes (Valid)
    • B) 192.168.100.68/255.255.255.252 - No (Invalid)
    • C) 192.168.100.70/255.255.255.252 - No (Same as device)
    • D) 192.168.100.71/255.255.255.252 - Yes (Valid)

    Answer: A and D

  5. What protocol does ping use?

    • A) ICMP - Yes
    • B) TCP - No
    • C) ARP - No
    • D) UDP - No

    Answer: A

  6. Layer-3 communication between 2 hosts can be achieved by using an address subnet of:

    • A) /31 - No
    • B) /29 - Yes
    • C) /30 - Yes
    • D) /32 - No

    Answer: B and C

  7. Select valid MAC-address:

    • A) 00:00:5E:80:EE:B0 - Yes
    • B) AEC8:21F1:AA44:54FF:1111:DDAE:0212:1201 - No (Invalid format)
    • C) G2:60:CF:21:99:H0 - No (Invalid characters)
    • D) 192.168.0.0/16 - No (IP address format)

    Answer: A

  8. Which of the following are valid IP addresses?

    • A) 10.10.14.0 - No (Network address)
    • B) 192.168.13.255 - No (Broadcast address)
    • C) 1.27.14.254 - Yes
    • D) 192.168.256.1 - No (Invalid octet)

    Answer: C

  9. What is the term for the hardware coded address found on an interface?

    • A) Interface Address - No
    • B) IP Address - No
    • C) MAC Address - Yes
    • D) FQDN Address - No

    Answer: C

  10. Correct configuration on client PC to access the Internet:

    • A) IP:192.168.2.115/24 gateway: 192.168.2.1 - Yes
    • B) IP:192.168.2.2/24 gateway: 202.168.125.45 - No (Invalid gateway)
    • C) IP:192.168.0.1/24 gateway: 192.168.2.1 - No (Invalid IP)
    • D) IP:192.168.2.253/24 gateway: 202.168.0.1 - No (Invalid gateway)
    • E) IP:192.168.1.223/24 gateway: 248.115.148.136 - No (Invalid subnet)

    Answer: A

  11. MAC layer by OSI model is also known as:

    • A) Layer 7 - No
    • B) Layer 1 - No
    • C) Layer 6 - No
    • D) Layer 3 - No
    • E) Layer 2 - Yes

    Answer: E

  12. The network address is:

    • A) None of the mentioned - No
    • B) The first usable address of the subnet - No
    • C) The last address of the subnet - No
    • D) The first address of the subnet - Yes

    Answer: D

  13. Collisions are possible in full-duplex Ethernet networks:

    • Answer: No (Collisions are not possible in full-duplex)

  14. The basic unit of a physical network (OSI Layer 1) is the:

    • A) Bit - Yes
    • B) Byte - No
    • C) Header - No
    • D) Frame - No

    Answer: A

  15. How many usable IP addresses are there in a 20-bit subnet?

    • A) 2046 - Yes
    • B) 2047 - No
    • C) 4096 - No
    • D) 2048 - No
    • E) 4094 - No

    Answer: A (2^12 - 2 = 4096 - 2 = 4094 usable addresses)

  16. Which of the following is NOT a valid MAC Address?

    • A) 80:GF:AA:67:13:5D - Yes (Invalid character)
    • B) EA:BA:AA:EE:FF:CB - No
    • C) 13:16:86:53:89:43 - No
    • D) 88:0C:00:99:5F:EF - No
    • E) 95:B5:DD:EE:78:8A - No

    Answer: A

  17. Which of the following protocols / ports are used for SNMP:

    • A) TCP 25 - No
    • B) TCP 123 - No
    • C) TCP 162 - No
    • D) UDP 162 - Yes
    • E) TCP 161 - No
    • F) UDP 161 - Yes

    Answer: D and F

  18. Select valid subnet masks:

    • A) 255.255.192.255 - No
    • B) 255.255.224.0 - Yes
    • C) 192.0.0.0 - No
    • D) 255.192.0.0 - Yes

    Answer: B and D

  19. How many IP addresses can one find in the header of an IP packet?

    • A) 2 - Yes (Source and Destination)
    • B) 3 - No