Network Fundamentals (OSI and TCP/IP models, IP addressing and subnetting, Networking devices and their functions) Flashcards
1
Q
What does OSI stand for?
A
Open Systems Interconnection
2
Q
How many layers are in the OSI model?
A
Seven
3
Q
Name the seven layers of the OSI model.
A
Physical, Data Link, Network, Transport, Session, Presentation, Application
4
Q
What layer of the OSI model is responsible for routing?
A
Network layer
5
Q
Which OSI layer segments and reassembles data?
A
Transport layer
6
Q
What layer of the OSI model does IP operate at?
A
Network layer
7
Q
What protocol is used at the Transport layer for reliable communication?
A
TCP
8
Q
Which OSI layer is responsible for error detection and correction?
A
Data Link layer
9
Q
What layer of the OSI model is responsible for encryption?
A
Presentation layer
10
Q
What is the function of the Session layer?
A
Establishes, manages, and terminates sessions between applications
11
Q
What does OSI stand for? (11)
A
Open Systems Interconnection
12
Q
How many layers are in the OSI model? (12)
A
Seven
13
Q
Name the seven layers of the OSI model. (13)
A
Physical, Data Link, Network, Transport, Session, Presentation, Application
14
Q
What layer of the OSI model is responsible for routing? (14)
A
Network layer
15
Q
Which OSI layer segments and reassembles data? (15)
A
Transport layer
16
Q
What layer of the OSI model does IP operate at? (16)
A
Network layer
17
Q
What protocol is used at the Transport layer for reliable communication? (17)
A
TCP
18
Q
Which OSI layer is responsible for error detection and correction? (18)
A
Data Link layer
19
Q
What layer of the OSI model is responsible for encryption? (19)
A
Presentation layer
20
Q
What is the function of the Session layer? (20)
A
Establishes, manages, and terminates sessions between applications
21
Q
What does OSI stand for? (21)
A
Open Systems Interconnection
22
Q
How many layers are in the OSI model? (22)
A
Seven
23
Q
Name the seven layers of the OSI model. (23)
A
Physical, Data Link, Network, Transport, Session, Presentation, Application
24
Q
What layer of the OSI model is responsible for routing? (24)
A
Network layer
25
Which OSI layer segments and reassembles data? (25)
Transport layer
26
What layer of the OSI model does IP operate at? (26)
Network layer
27
What protocol is used at the Transport layer for reliable communication? (27)
TCP
28
Which OSI layer is responsible for error detection and correction? (28)
Data Link layer
29
What layer of the OSI model is responsible for encryption? (29)
Presentation layer
30
What is the function of the Session layer? (30)
Establishes, manages, and terminates sessions between applications
31
What does OSI stand for? (31)
Open Systems Interconnection
32
How many layers are in the OSI model? (32)
Seven
33
Name the seven layers of the OSI model. (33)
Physical, Data Link, Network, Transport, Session, Presentation, Application
34
What layer of the OSI model is responsible for routing? (34)
Network layer
35
Which OSI layer segments and reassembles data? (35)
Transport layer
36
What layer of the OSI model does IP operate at? (36)
Network layer
37
What protocol is used at the Transport layer for reliable communication? (37)
TCP
38
Which OSI layer is responsible for error detection and correction? (38)
Data Link layer
39
What layer of the OSI model is responsible for encryption? (39)
Presentation layer
40
What is the function of the Session layer? (40)
Establishes, manages, and terminates sessions between applications
41
What does OSI stand for? (41)
Open Systems Interconnection
42
How many layers are in the OSI model? (42)
Seven
43
Name the seven layers of the OSI model. (43)
Physical, Data Link, Network, Transport, Session, Presentation, Application
44
What layer of the OSI model is responsible for routing? (44)
Network layer
45
Which OSI layer segments and reassembles data? (45)
Transport layer
46
What layer of the OSI model does IP operate at? (46)
Network layer
47
What protocol is used at the Transport layer for reliable communication? (47)
TCP
48
Which OSI layer is responsible for error detection and correction? (48)
Data Link layer
49
What layer of the OSI model is responsible for encryption? (49)
Presentation layer
50
What is the function of the Session layer? (50)
Establishes, manages, and terminates sessions between applications
51
What does OSI stand for? (51)
Open Systems Interconnection
52
How many layers are in the OSI model? (52)
Seven
53
Name the seven layers of the OSI model. (53)
Physical, Data Link, Network, Transport, Session, Presentation, Application
54
What layer of the OSI model is responsible for routing? (54)
Network layer
55
Which OSI layer segments and reassembles data? (55)
Transport layer
56
What layer of the OSI model does IP operate at? (56)
Network layer
57
What protocol is used at the Transport layer for reliable communication? (57)
TCP
58
Which OSI layer is responsible for error detection and correction? (58)
Data Link layer
59
What layer of the OSI model is responsible for encryption? (59)
Presentation layer
60
What is the function of the Session layer? (60)
Establishes, manages, and terminates sessions between applications
61
What does OSI stand for? (61)
Open Systems Interconnection
62
How many layers are in the OSI model? (62)
Seven
63
Name the seven layers of the OSI model. (63)
Physical, Data Link, Network, Transport, Session, Presentation, Application
64
What layer of the OSI model is responsible for routing? (64)
Network layer
65
Which OSI layer segments and reassembles data? (65)
Transport layer
66
What layer of the OSI model does IP operate at? (66)
Network layer
67
What protocol is used at the Transport layer for reliable communication? (67)
TCP
68
Which OSI layer is responsible for error detection and correction? (68)
Data Link layer
69
What layer of the OSI model is responsible for encryption? (69)
Presentation layer
70
What is the function of the Session layer? (70)
Establishes, manages, and terminates sessions between applications
71
What does IP stand for?
Internet Protocol
72
How many bits are in an IPv4 address?
32
73
How many bits are in an IPv6 address?
128
74
What is the default subnet mask for a Class A IP address?
255.0.0.0
75
What is the default subnet mask for a Class B IP address?
255.255.0.0
76
What is the default subnet mask for a Class C IP address?
255.255.255.0
77
What is the range of Class A IP addresses?
1.0.0.0 to 126.255.255.255
78
What is the range of Class B IP addresses?
128.0.0.0 to 191.255.255.255
79
What is the range of Class C IP addresses?
192.0.0.0 to 223.255.255.255
80
What is a private IP address?
An IP address used within a private network that is not routable on the internet
81
What does IP stand for? (11)
Internet Protocol
82
How many bits are in an IPv4 address? (12)
32
83
How many bits are in an IPv6 address? (13)
128
84
What is the default subnet mask for a Class A IP address? (14)
255.0.0.0
85
What is the default subnet mask for a Class B IP address? (15)
255.255.0.0
86
What is the default subnet mask for a Class C IP address? (16)
255.255.255.0
87
What is the range of Class A IP addresses? (17)
1.0.0.0 to 126.255.255.255
88
What is the range of Class B IP addresses? (18)
128.0.0.0 to 191.255.255.255
89
What is the range of Class C IP addresses? (19)
192.0.0.0 to 223.255.255.255
90
What is a private IP address? (20)
An IP address used within a private network that is not routable on the internet
91
What does IP stand for? (21)
Internet Protocol
92
How many bits are in an IPv4 address? (22)
32
93
How many bits are in an IPv6 address? (23)
128
94
What is the default subnet mask for a Class A IP address? (24)
255.0.0.0
95
What is the default subnet mask for a Class B IP address? (25)
255.255.0.0
96
What is the default subnet mask for a Class C IP address? (26)
255.255.255.0
97
What is the range of Class A IP addresses? (27)
1.0.0.0 to 126.255.255.255
98
What is the range of Class B IP addresses? (28)
128.0.0.0 to 191.255.255.255
99
What is the range of Class C IP addresses? (29)
192.0.0.0 to 223.255.255.255
100
What is a private IP address? (30)
An IP address used within a private network that is not routable on the internet
101
What does IP stand for? (31)
Internet Protocol
102
How many bits are in an IPv4 address? (32)
32
103
How many bits are in an IPv6 address? (33)
128
104
What is the default subnet mask for a Class A IP address? (34)
255.0.0.0
105
What is the default subnet mask for a Class B IP address? (35)
255.255.0.0
106
What is the default subnet mask for a Class C IP address? (36)
255.255.255.0
107
What is the range of Class A IP addresses? (37)
1.0.0.0 to 126.255.255.255
108
What is the range of Class B IP addresses? (38)
128.0.0.0 to 191.255.255.255
109
What is the range of Class C IP addresses? (39)
192.0.0.0 to 223.255.255.255
110
What is a private IP address? (40)
An IP address used within a private network that is not routable on the internet
111
What does IP stand for? (41)
Internet Protocol
112
How many bits are in an IPv4 address? (42)
32
113
How many bits are in an IPv6 address? (43)
128
114
What is the default subnet mask for a Class A IP address? (44)
255.0.0.0
115
What is the default subnet mask for a Class B IP address? (45)
255.255.0.0
116
What is the default subnet mask for a Class C IP address? (46)
255.255.255.0
117
What is the range of Class A IP addresses? (47)
1.0.0.0 to 126.255.255.255
118
What is the range of Class B IP addresses? (48)
128.0.0.0 to 191.255.255.255
119
What is the range of Class C IP addresses? (49)
192.0.0.0 to 223.255.255.255
120
What is a private IP address? (50)
An IP address used within a private network that is not routable on the internet
121
What does IP stand for? (51)
Internet Protocol
122
How many bits are in an IPv4 address? (52)
32
123
How many bits are in an IPv6 address? (53)
128
124
What is the default subnet mask for a Class A IP address? (54)
255.0.0.0
125
What is the default subnet mask for a Class B IP address? (55)
255.255.0.0
126
What is the default subnet mask for a Class C IP address? (56)
255.255.255.0
127
What is the range of Class A IP addresses? (57)
1.0.0.0 to 126.255.255.255
128
What is the range of Class B IP addresses? (58)
128.0.0.0 to 191.255.255.255
129
What is the range of Class C IP addresses? (59)
192.0.0.0 to 223.255.255.255
130
What is a private IP address? (60)
An IP address used within a private network that is not routable on the internet
131
What does IP stand for? (61)
Internet Protocol
132
How many bits are in an IPv4 address? (62)
32
133
How many bits are in an IPv6 address? (63)
128
134
What is the default subnet mask for a Class A IP address? (64)
255.0.0.0
135
What is the default subnet mask for a Class B IP address? (65)
255.255.0.0
136
What is the default subnet mask for a Class C IP address? (66)
255.255.255.0
137
What is the range of Class A IP addresses? (67)
1.0.0.0 to 126.255.255.255
138
What is the range of Class B IP addresses? (68)
128.0.0.0 to 191.255.255.255
139
What is the range of Class C IP addresses? (69)
192.0.0.0 to 223.255.255.255
140
What is a private IP address? (70)
An IP address used within a private network that is not routable on the internet
141
What device operates at Layer 2 and forwards data based on MAC addresses?
Switch
142
What device operates at Layer 3 and routes packets based on IP addresses?
Router
143
What device regenerates and amplifies signals to extend network range?
Repeater
144
What device connects different networks together?
Router
145
What device connects devices in a network and broadcasts to all ports?
Hub
146
What device translates private IP addresses to public IP addresses?
NAT device
147
What is the purpose of a firewall?
To monitor and control incoming and outgoing network traffic
148
What is a modem used for?
To modulate and demodulate signals for internet access over phone lines
149
What device can inspect packets and filter traffic based on security rules?
Firewall
150
What device can prioritize traffic in a network?
QoS device or smart switch
151
What device operates at Layer 2 and forwards data based on MAC addresses? (11)
Switch
152
What device operates at Layer 3 and routes packets based on IP addresses? (12)
Router
153
What device regenerates and amplifies signals to extend network range? (13)
Repeater
154
What device connects different networks together? (14)
Router
155
What device connects devices in a network and broadcasts to all ports? (15)
Hub
156
What device translates private IP addresses to public IP addresses? (16)
NAT device
157
What is the purpose of a firewall? (17)
To monitor and control incoming and outgoing network traffic
158
What is a modem used for? (18)
To modulate and demodulate signals for internet access over phone lines
159
What device can inspect packets and filter traffic based on security rules? (19)
Firewall
160
What device can prioritize traffic in a network? (20)
QoS device or smart switch
161
What device operates at Layer 2 and forwards data based on MAC addresses? (21)
Switch
162
What device operates at Layer 3 and routes packets based on IP addresses? (22)
Router
163
What device regenerates and amplifies signals to extend network range? (23)
Repeater
164
What device connects different networks together? (24)
Router
165
What device connects devices in a network and broadcasts to all ports? (25)
Hub
166
What device translates private IP addresses to public IP addresses? (26)
NAT device
167
What is the purpose of a firewall? (27)
To monitor and control incoming and outgoing network traffic
168
What is a modem used for? (28)
To modulate and demodulate signals for internet access over phone lines
169
What device can inspect packets and filter traffic based on security rules? (29)
Firewall
170
What device can prioritize traffic in a network? (30)
QoS device or smart switch
171
What device operates at Layer 2 and forwards data based on MAC addresses? (31)
Switch
172
What device operates at Layer 3 and routes packets based on IP addresses? (32)
Router
173
What device regenerates and amplifies signals to extend network range? (33)
Repeater
174
What device connects different networks together? (34)
Router
175
What device connects devices in a network and broadcasts to all ports? (35)
Hub
176
What device translates private IP addresses to public IP addresses? (36)
NAT device
177
What is the purpose of a firewall? (37)
To monitor and control incoming and outgoing network traffic
178
What is a modem used for? (38)
To modulate and demodulate signals for internet access over phone lines
179
What device can inspect packets and filter traffic based on security rules? (39)
Firewall
180
What device can prioritize traffic in a network? (40)
QoS device or smart switch
181
What device operates at Layer 2 and forwards data based on MAC addresses? (41)
Switch
182
What device operates at Layer 3 and routes packets based on IP addresses? (42)
Router
183
What device regenerates and amplifies signals to extend network range? (43)
Repeater
184
What device connects different networks together? (44)
Router
185
What device connects devices in a network and broadcasts to all ports? (45)
Hub
186
What device translates private IP addresses to public IP addresses? (46)
NAT device
187
What is the purpose of a firewall? (47)
To monitor and control incoming and outgoing network traffic
188
What is a modem used for? (48)
To modulate and demodulate signals for internet access over phone lines
189
What device can inspect packets and filter traffic based on security rules? (49)
Firewall
190
What device can prioritize traffic in a network? (50)
QoS device or smart switch
191
What device operates at Layer 2 and forwards data based on MAC addresses? (51)
Switch
192
What device operates at Layer 3 and routes packets based on IP addresses? (52)
Router
193
What device regenerates and amplifies signals to extend network range? (53)
Repeater
194
What device connects different networks together? (54)
Router
195
What device connects devices in a network and broadcasts to all ports? (55)
Hub
196
What device translates private IP addresses to public IP addresses? (56)
NAT device
197
What is the purpose of a firewall? (57)
To monitor and control incoming and outgoing network traffic
198
What is a modem used for? (58)
To modulate and demodulate signals for internet access over phone lines
199
What device can inspect packets and filter traffic based on security rules? (59)
Firewall
200
What device can prioritize traffic in a network? (60)
QoS device or smart switch
