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BCS Level 4 Network Principles Flashcards | StudBud
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BCS Level 4 Network Principles
BCS Level 4 Network Principles
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A #BCS Level 4 Diploma in #Network Principles
Flashcards
55 cards
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Practice quiz
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Host live
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Questions
55
Answers
1
which of the following would BEST describe a MAN?
Many LANS connected to provide global networking
A local network used to connect wireless devices
A local network used to connect bluetooth devices
Many LANs connected in the same region
2
What UK legislation makes you responsible for correctly using PPE provided by your employer?
Health and Safety at Work Act 1974
Use of Work Equipment Regulations 2006
Working Practices Directive 303/1/2009
PPE Regulations, Part 2 - Employee Responsibilities 2002
3
What is the maximum number of hosts allowed on subnet 172.30.100.0/22?
258
522
510
1022
4
Photo
162.150.31.255
162.150.31.0
162.150.16.255
162.150.16.0
5
In OSI model, what layer is responsible for handling syntax differences in data representation?
Session
Presentation
Application
Datalink
6
Why would dynamic routing be used?
Reduce network loading by sharing traffic equally to routers
Allow VPNs in networks where spare IP addresses is limited
To increase network resilience and reduce network admin
To reduce network admin
7
In IPv6, how many bits are used to define the address?
32
64
256
128
8
When will a router using dynamic routing put destination information into it's route table?
When RIPv1 is the chosen protocol
If OSPF is activated
It always does it
If the default route does not exist
9
What is the SI unit for Apparent Power in an electrical circuit?
VAr
VA
CosΦ
W
10
What is the recommended limits for temperature of the air supplied to intake of IT equipment?
18° C to 32°C
18° C to 27°C
15° C to 32°C
10° C to 35°C
11
The dual algorithm is used by which dynamic routing protocol?
RIPv2
OSPF
RIPv1
EIGRP
12
Which netmask is used to subnet 192.168.0.0/24?
255.255.192.0
255.255.255.192
255.255.128.0
255.255.255.128
13
Why would you use dynamic routing?
Add network resilience & lower network administration
Allow VPNs in networks where spare IP addresses is limited
Lower network buffer by sharing traffic equally with routers
photo
14
A byte is a combination of how many bits?
8
32
4
6
15
Which port would you open on your firewall to allow HTTP access to your web server?
88
25
53
80
16
How do network clients use broadcasts to facilitate MAC to IP address mapping?
Broadcasts are not used for mapping
Broadcasts are used for all IP address
Broadcast are used for uncached addresses
Broadcast are used over WAN links
17
What is 10001011 expressed in hexadecimal?
AB
38
5E
8B
18
Which statement best describes a LAN?
An encrypted internet connection
A network over a small area
A virtual private network
An unencrypted internet connection
19
What service is designed to assign ip addresses to nodes on a IP network during initialisation?
Netstat
Telnet
PING
DHCP
20
What is the logical communications service used at the physical layer?
TCP/IP
Spanning Tree protocol
HyperTerminal
Flow Control
21
The OSI 7 layer model has seven protocol layers. Which layer is between Transport and Datalink?
Data link
Network
Application
Physical
22
which of the following is a characteristic of VLSM?
The subnet mask is the same for each network
It provides a more efficient use of addresses
VLSM encourages wasted IP addresses on a network
The same number of addresses is used in each subnet
23
What MUST an organisation do before it can use computers to collect and store personal info?
Obtain a Data Protection Licence from the EU
Register with the Information Commissioner
Guarantee the data will be kept on dedicated storage devices
Post a copy of its Data Protection Certificate on website
24
In the OSI 7 Layer Model, where are the TCP and UDP are protocols found?
The Application layer
The Session layer
The Network layer
The Transport layer
25
Which protocol is used to map IP addresses to physical MAC addresses
UDP
Telnet
ARP
CSMA/CD
26
photo
138.172.0.16.
255.255.255.16.
255.255.240.0.
255.255.16.0.
27
How does encapsulation facilitate data communication?
Encrypts PDU from lower OSI layers into higher ones
Embeds PDU from higher OSI layers into lower ones
Embeds PDU from lower OSI layers into higher ones
Encrypts PDU from higher OSI layers into lower ones
28
What is the standard subnet for a Class B address?
255.255.127.0
255.0.0
255.255.255.0
255.255.0.0
29
What media is used to access wireless devices from a wireless access point?
Infrared
Copper cable
Radio waves
Visible light
30
The strength of a signal changes along the length of a cable. What is this called?
Attenuation
Resistance
Capacitance
Reflection
31
How many host addresses are usable on the network address 172.16.0.0/116?
65536
65533
65532
65534
32
You wish to find the list of TCP and UDP ports in use, which command line should you use?
Netstat -a
Tracert
Arp /all
Nbtstat -a
33
Which port would be opened on a firewall to allow HTTP access to a web server?
88
53
80
25
34
Which statement is TRUE for UDP?
It is a connectionless protocol
It is more reliable than TCP
It uses handshaking
It is slow compared to TCP
35
What is the specified characteristic impedance of Cat5e cable?
50 Ohm +/- 10%
75 Ohm +/- 15%
100 Ohm +/- 15%
50 Ohm +/- 5%
36
A virus is detected on a file server. Which network characteristic is affected?
Security
VoIP
DHCP
Scalability
37
According to IEEE 802.1q, 3 bits in the frame header are used to find which of the following?
QoS checksum
Preferred route to destination
Service classes
.VPN bandwidth reservation
38
Which of the following are routing protocols?
RIP and UDP
TCP and UDP
OSPF and TCP
OSPF and RIP
39
In the Health and Safety Regulations, what shape and colour sign tells you to wear a helmet?
Round, red, white and black
Round, blue and white
Triangular, yellow and black
Rectangular, green and white
40
Router uses dynamic routing for BEST path to address. When will it put this info into a table?
If the default route does not exist
If OSPF is activated
It always does it
When RIPv1 is the chosen protocol
41
In a RIPv2 network, which algorithm does rip USE TO CALCULATE THE best path between networks?
Bellman-Ford
DUAL
Dijkstra
Diffie-Hellman
42
What is the network IP address of 172.16.150.1 if the subnet mask is 255.255.248.0?
172.16.148.0
172.16.144.0
172.16.150.0
172.16.140.0
43
Which of the following represents the answer to the hexadecimal sum 0Fh + 1?
1Fh
0Gh
10h
F1h
44
Which dynamic protocol uses Dijkstra's algorithm to calculate the route between networks?
OSPF
RIPv1
RIPv2
EIGRP
45
what is the binary equivalent of 9F?
10011111
10001111
10111001
11110011
46
which network component manages VLANs?
Switch
Hub
Router
Firewall
47
What is the binary equivalent of 157?
10011101
10111001
11000111
10001111
48
Which method of IP addressing does VLSM use?
ISP
CIDR
TCP/IP
Classful addressing
49
What European Standard defines requirements for Information Technology Generic Cabling Systems?
EN 50173
EN 11801
ISO/IEC 11801
TIA/EIA 568
50
how do network clients use broadcasts to facilitate MAC to IP address mapping?
Broadcasts are used for all IP address
Broadcasts are used for uncached addresses
Broadcasts are not used for mapping
Broadcasts are used over WAN links
51
Which of the following is the best description of a WAN?
a local wired network
a local wireless network
a network over a small area
a network over a large area
52
What is the maximum decimal number that can be represented in 8 binary bits?
254
255
256
248
53
What is the decimal equivalent of 10101010?
192
170
200
156
54
Convert the following binary number to decimal: 10110101
200
146
19
181
55
How many host addresses are usable on the network address 172.16.1.0/26?
63
64
65
62
