- 1. The Physical or MAC Address of a host device is an address that is unique, made up of 48 binary bits in length, and is burned onto the Read Only Memory (ROM) chip of a: __________________________________
A) Network Address Routers
B) Network Gateway Table
C) Network Domain Servers
D) Network Interface Card
- 2. The IEEE states that the only 2 sub-layers of the OSI Data Link Layer are the Logical Link Control and the: __________________________________
A) Media Axis Center
B) Media Access Control
C) Media Control Support
D) Media Access Center
- 3. Whereas an IPv6 address is made up of 128 bits (as it is hexadecimal), an IPv4 address with the standard configuration xxx.xxx.xxx.xxx is said to be made up of _________ bits.
A) 24
B) 32
C) 8
D) 16
- 4. If a user pings the loop-back address: 127.0.0.1, and receives a message stating there has been a "100% packet loss," the user should suspect that:
A) IP is not properly installed
B) the host is experience a Denial-of-Service attack
C) all sockets have been closed by the built-in firewall
D) default gateway is improperly configured
- 5. If a router receives an ICMP packet, and its time to live is 2 (TTL = 2), but its destination is many hops away, the router will discard the packet and will send a _________ ___________ message to the destination host.
A) time delayed
B) time to live needs to be increased
C) time exceeded
D) time repeated
- 6. IPv6 is primarily needed because we need additional ____________________.
A) multiplexing
B) addresses
C) security
D) software
- 7. IPV6 offers larger address spaces, data types and classes of service, and increased authentication and ________________.
A) encryption
B) lower management
C) lower firewall protocols
D) lower pricing
- 8. All of the following end devices should received static IP addresses except:
A) guest laptops
B) network printers
C) routers
D) servers
- 9. To determine the network address of host A, routers use the ____________ process, where only an IP address and subnet mask of a host are needed (and turned into binary).
A) ANDing
B) ENDing
C) PLEXing
D) PAUSing
- 10. In a home network, where a gateway is running with the NAT service, private addresses (192.168...) are blocked from public Internet by the router and the loop-back (127.0.0.1) address can used by hosts to direct traffic to __________________.
A) the tier 1 ISP
B) Microsoft
C) the gateway
D) themselves
- 11. 192.168.254.254 is a/an ____________________ address.
A) public
B) private
C) IPv6
D) detailed
- 12. 172.31.255.254 is a/an _______________ address.
A) private
B) public
C) IPv6
D) detailed
- 13. 2001:0db8:85a3:0000:0000:8a2e:0370:7334 is a/an _________________ address.
A) private
B) public
C) IPv4
D) IPv6
- 14. If a class C address had all 254 hosts available, the subnet mask will most likely be:
A) 255.255.255.0
B) 255.255.254.0
C) 255.255.0.0
D) 255.255.240.1
- 15. A PC that lacks an administrator to assign it a static IP, or a DHCP server to assign it a dynamic IP, will use ZEROCONF, or the autoconfiguration method to assign itself a Link-Local Address, which defaults to:
A) 10.1.1.1
B) 192.1681.1.0
C) 255.255.255.255
D) 169.254.0.0
- 16. You are presented with 4 end devices. Their IP addresses are:
Host A: 199.168.12.1; Host B: 199.168.12.250; Host C:199.168.16.242; Host D: 199.168.18.232. Which 2 hosts are on the same network?
A) Host B and Host D
B) Host B and Host C
C) Host A and Host C
D) Host A and Host B
- 17. What is the network address of the host 172.25.68.98/24 ?
A) 172.25.68.24
B) 172.25.67.255
C) 172.25.68.0
D) 172.25.68.98
- 18. 3 properties of the network portion of an IPv4 address are that the network portion is identical for all hosts on a domain, varies in length, and is used to forward ________________.
A) frames
B) pings
C) PDUs
D) packets
- 19. A gateway is replaced with another on a LAN. A PC on that LAN with IP 192.168.1.65 cannot access the Internet. A loop-back ping is successful, and the gateway can be accessed. The next troubleshooting step should be:
A) suspect the Operating System is faulty
B) suspect the DHCP is not active on the gateway
C) suspect that NAT is not active on the gateway
D) suspect IP is not installed on the PC
- 20. IPv4 addresses operate at layer _____ of the OSI model.
A) 2
B) 1
C) 3
D) 4
- 21. IP Addresses 224.0.0.0 to 239.255.255.255 are considered ___________________ addresses.
A) Host
B) Multicast
C) Experimental
D) Super Subnet
- 22. IP Addresses 240.0.0.0 to 255.255.255.254 are considered ___________________ addresses.
A) experimental
B) unicast
C) multicast
D) host
- 23. In organizations that utilize a Class B IP addressing scheme, many host computers will tend to be assigned a a/an ________________ IP address (think of our own LAN).
A) multicast
B) experimental
C) private
D) public
- 24. When subnetting by networks, we first must know the number of networks needed. The decimal number of networks is converted into binary. We see the number of bits that were switched on, and get our subnet mask. We find the number of increments by looking at the LSB, or Least Significant ___________.
A) bit
B) mask
C) proxy
D) byte
- 25. The 'ping' utility is usually used to verify that a local host can communicate with a/an ______________ across a LAN.
A) hub
B) ISP
C) switch
D) gateway
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