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BCS Networking Principles - Network Addresses
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Questions in this quiz (40)
1Whats the purpose of an IP address?
- ATo uniquely address and identify a device across a network. It allows data communication to devices
- BAn address to show the geographical location of a device
- CAn address that uniquely identifies each hardware component of a device on a network
2Name 3 features of an IP Address
- A32 bits
- BMade up of purely Decimal numbers
- CMaximum of 255.255.255.255
- DHas a mixture of Numbers and letters
- EMade up of 8 bits
3What is a network ID/Address?
- APart of the IP address that is used to identify the network as a whole amongst other networks
- BAn IP address
- CPart of an IP address that identifies a host in a network
4What is a Host ID/Address?
- AUsed to specify number of supported hosts and to identify each host uniquely
- BUsed to identify the network
- CThird octet of an IP address
5What are the 5 classes of IP address?
- AClass A, B, C, D, E
- BClass 1, 2, 3, 4, 5
- CClass D, 1, G, 2, 5
6What is the Range for the first 3 Classes?
- AA: 1-126
B: 128-191
C: 192-223 - BA: 1-100
B: 101-200
C: 201-255 - CA: 1-127
B: 129-192
C: 193-224
- AA: 1-126
7What is Class D reserved for?
- AReserved for Multicast Groups
- BReserved for research or development purposes
- CReserved for Loopback address
8What is Class E Reserved for?
- AReserved for Future Use, Research and Development
- BReserved for Multicast Groups
- CReserved for Loopback
9What part of the IP address determines the class?
- AFirst Octet
- BSecond Octet
- CThird Octet
102 characteristics of Class A Addresses:
- ASupports Large numbers of Hosts
- BFirst Octet = Network ID
Second, Third, Fourth Octets = Host ID - C128 Network ID's
- DSupports Small Numbers of Hosts
112 Characteristics of Class B Addresses:
- AMedium- Large Networks
- BNetwork ID is 16bits long and Host ID is 16bits long
- CSupports Large Networks only
- DMade up of 128 bits in total
122 Characteristics of Class C Addresses:
- ASupport Small Networks only
- BNetwork ID = 24bits
Host ID = 8 bits - CSupports Large Networks Only
- DCan have 4 million of them
13What is special about the Range of IP addresses: 169.254.0.0 - 169.254.0.16
- ALink Local Addresses
- BLoop Back Addresses
- CUsed to communicate within current network
14What is special about the range of IP Addresses 127.0.0.0-127.0.0.8?
- ALoop-Back Addresses
- BLink Local Addresses
- CUsed to communicate within current network
15What are the 2 formats of IP addresses?
- ABinary
- BDotted Decimal Notation
- CHexadecimal
- DString
16What is a Network Address?
- AFirst address in the network - Used for identification network segment. Identifies the sunbet of a host
- BIP Address that allows information to be sent to all machines on a given subnet rather than a specific machine. Last Address in the network
- CAddress for the entire network
17Broadcast address is the IP address that allows information to be sent to all machines on a given subnet rather than a specific machine. It is also the last address in the network
- ATrue
- BFalse
18How do IP addresses get mapped to MAC addresses in the Data Link Layer?
- AAddress Resolution Protocol
- BAND Function
- CTOS
19What is RARP?
- AReverse Address Resolution Protocol
- BReverse Activity Resolution Protocol
- CReady Always Resolution Protocol
20Check all the steps ARP uses:
- AWhen data is required to be sent the machine will consult the table to see if it knows the MAC address.
- BSends a broadcast packet to the network using ARP protocol to ask who has a specific IP address.
- CIf the device has that IP address it will reply with an ARP packet which includes the MAC address
- DCombines all the data into one bundle with the IP address and MAC address together for other devices to read
- EAccess the ARP table and finds the address. If it cannot find the address the broadcast is not sent
- FARP encodes the IP address into a MAC address for other devices to understand it.
21Why has IPv6 been brought in?
- AIPv6 has been brought in because the growth of the internet has become so large that there are no more IPv4 addresses available now
- BIPv6 is designed to keep up with new technologies and new devices that will be brought in, in the future
- CIt is much more secure than IPv4 which is why it is being introduced
22What is Subnetting?
- ASubnetting is dividing a large block of addresses into several contiguous sub-blocks and assigning these blocks to smaller networks
- BGiving a network a secret IP address that has to be worked out to know what the real one is
- CCutting up a network and getting rid of the IP addresses you need
23A subnet mask is a 32-bit number that masks an IP address and divides the IP address into network address and host address.
- ATrue
- BFalse
24Check the correct table for AND operations
- AOperand 1 Operand 2 AND Result
1 1 1
1 0 0
0 1 0
0 0 0 - BOperand 1 Operand 2 AND Result
1 1 1
1 0 1
0 1 1
0 0 0 - COperand 1 Operand 2 AND Result
1 1 0
1 0 1
0 1 1
0 0 0
- AOperand 1 Operand 2 AND Result
25Public Address = IP address that can be accessed over the internet. Guaranteed to be uniquely available
Private Address = IP addresses that use Private IP address space- ATrue
- BFalse
26What is the default gateway?
- AAn access point or IP router that a networked computer uses to send information to a computer in another network or the internet
- BA gateway that allows data into the network but not out
- CWhere devices IP addresses come from
27What does DHCP stand for?
- ADynamic Host Configuration Protocol
- BDesktop Host Control Protocol
- CDynamic Host Control Process
28Server requirements for DHCP (Select all that apply):
- ADHCP Server Tools Feature
- BActive Directory
- CDefault Gateway
- D8GB RAM, 250GB HDD, NIC
29What does DORA stand for?
- ADiscover, Offer, Request, Acknowledgement
- BDevelop, Offer, Request, Acknowledgement
- CDiscover, Offer, Read, Accept
30Whats the correct order of DORA?
- A1. Client sends a Discovery request to the network asking for IP information
2. Any listening DHCP server will Offer configuration
3. Workstation chooses best lease and then Requests it
4. DHCP server then Acknowledges requests and leases the IP address - B1. DHCP server broadcasts Discover packet in the subnet
2. DHCP Client receives packet and replies with Offer packet
3. Server then broadcasts request with server identifier
4. DHCP client receives the request and stores Server identifier - C1. Client machine comes onto the network
2. DHCP server broadcasts a request
3. Client machine replies to the broadcast to let it know it is there
4. Server sends an IP address to it
- A1. Client sends a Discovery request to the network asking for IP information
31A DHCP enabled client obtains a lease for an IP address from a DHCP server. Before the lease expires the DHCP server must renew the lease for the client or the client must obtain a new lease.
- ATrue
- BFalse
32What is a domain name?
- AA domain name is a user friendly way of remembering an IP address of a website or location we are trying to access.
- BAn area on the internet that only belongs to a particular person or business
- CA website address
33What is DNS?
- ADomain Name System
- BDomain Name Server
- CDomain Network System
34Whats the correct process of DNS?
- A1. User types in the domain the would like and the machine checks its Cache first to see if it has it
2. Queries Recursive Resolver (ISP) - Knows which server is best to speak to about it
3. Root Server - Knows about Top Level Domains (.com) - Knows where to find this
4. TLD Name Server - Stores info regardin SLD (google.com) - Server answers with IP address with DNS
5. Sends query to Domain's name server - Passes IP address back to PC
6. Website Appears - B1. User types the website address they would like to access
2. It searches googles directory for the website
3. User clicks on Website and it opens - C1. User types in the domain they would like and the machine forwards queury onto ISP
2. This goes to the Root Server
3. TLD Name Server
4. Domain Name Server
- A1. User types in the domain the would like and the machine checks its Cache first to see if it has it
35What class is 192168.1.0 in?
- AClass C
- BClass D
- CClass A
36What is the range for Class A?
- A1-126
- B128-191
- C1-127
37What is the range for Class B?
- A128-191
- B127-191
- C192.223
38What is the range for Class C?
- A192-223
- B191-223
- C224-239
39IP address: 130.1.52.0 is in class C?
- ATrue
- BFalse
40What class is the IP address 52.126.127.0 in?
- AClass A
- BClass B
- CClass C
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- Level 4 BCS Networking Principles Quiz on BCS Networking Principles - Network Addresses , created by Louise Howard on 17/04/2018.
- Author
- Louise Howard
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- English
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