Transcript Ch 4 iClicker Questions

iClicker Questions
CNIT 201E
Modified 8-31-10
After 4.1
What OSI Model Layer labels data
with a port number?
A.
B.
C.
D.
E.
Application, Presentation, or Session
Transport
Network
Data Link
Physical
1 of 7
What OSI Model Layer labels data
with a MAC Address?
A.
B.
C.
D.
E.
Application, Presentation, or Session
Transport
Network
Data Link
Physical
2 of 7
What OSI Model Layer labels data
performs segmentation?
A.
B.
C.
D.
E.
Application, Presentation, or Session
Transport
Network
Data Link
Physical
3 of 7
Which protocol will deliver a large
data file the most rapidly?
A.
B.
C.
D.
E.
FTP
HTTP
TCP
UDP
HTTPS
4 of 7
Which item is not found in the
TCP header?
A.
B.
C.
D.
E.
ACK number
Source IP Address
Source Port Number
Window Size
Checksum
5 of 7
A client requests a Web page.
What TCP port on the Web server
receives the request?
A.
B.
C.
D.
E.
23
53
80
110
A port larger than 1023
6 of 7
A client requests a Web page.
What TCP port on the client sends
the request?
A.
B.
C.
D.
E.
23
53
80
110
A port larger than 1023
7 of 7
After 4.2
When a user opens a Web page,
what is the first TCP packet sent to
the server?
A.
B.
C.
D.
E.
SYN
SYN/ACK
HTTP GET
ACK
ARP
1 of 5
Which item is not a flag field in the
TCP Header?
A.
B.
C.
D.
E.
GET
ACK
PSH
URG
RST
2 of 5
Which type of packet is normally
sent to indicate that the session
should be ended?
A.
B.
C.
D.
E.
ACK
FIN
PSH
URG
RST
3 of 5
What TCP Header Field specifies
how many bytes can be sent before
waiting for acknowledgement?
A.
B.
C.
D.
E.
Window
Checksum
Flags
Sequence Number
Acknowledgement Number
4 of 5
What TCP Header Field has the
value 80 in an HTTP GET
segment?
A.
B.
C.
D.
E.
Source Port
Checksum
Flags
Sequence Number
Destination Port
5 of 5
Binary Lesson 4
Hexadecimal and Binary
Practice
Counting to 15
Base Base Base 16
Two Ten (Hex)
0 0 0
1 1 1
10 2 2
11 3 3
100 4 4
101 5 5
110 6 6
111 7 7
Base
Base
Two
Ten
1000
8
1001
9
1010 10
1011 11
1100 12
1101 13
1110 14
1111 15
Base 16
(Hex)
8
9
A
B
C
D
E
F
Four Bits Make a Nybble
1 0 0 1
8s
A
4s
2s
1s
nybble can be represented by one
hexadecimal digit
Values from 0 to 15, or 0 to F
Eight Bits Make a Byte
1
128s
0
0
1
1
0
0
1
64s 32s 16s 8s
4s
2s
1s
One nybble:
One nybble:
0 through F
0 through F
So this number is
128 + 16 + 8 + 1 = 153
Two hexadecimal digits make a byte
1
0
0
1
1
0
0
One nybble:
One nybble:
0 through F
0 through F
# of 16s
# of 1s
1
So this number is $99 = 9*16 + 9 = 144+9 =
153
Binary iClicker
Questions
What is 16 in hexadecimal?
A. $0A
B. $A6
C. $0F
D. $10
E. $16
1 of 11
What is $A0 in decimal?
A. 160
B. 100
C. 10
D. 255
E. 90
2 of 11
What is 64 in hexadecimal?
A. $20
B. $30
C. $34
D. $40
E. $44
3 of 11
What is 252 in hexadecimal?
A. $F0
B. $F8
C. $FA
D. $FC
E. $FE
4 of 11
Convert this binary number to
hexadecimal:
01101011
A. $23
B. $63
C. $67
D. $69
E. $6B
5 of 11
What is the
highlighted
IP
Address?
A. 127.0.0.1
B. 192.168.0.139
C. 192.168.0.101
D. 192.168.0.91
E. Something else
6 of 11
Convert this IP address to
hexadecimal:
127.0.0.1
A. 80
B. 81
C. 79
D. 7F
E. 7D
00
00
00
00
00
00
00
00
00
00
01
01
01
01
01
7 of 11
Convert this IP address to binary:
127.0.0.1
A.
B.
C.
D.
E.
11111111
01111111
00111111
00011111
00001111
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000001
00000001
00000001
00000001
00000001
8 of 11
Convert this IP address to binary:
147.144.0.1
A.
B.
C.
D.
E.
11111111
01111111
10010111
10010011
10010111
00000000
00000000
10010000
10010000
10110000
00000000
00000000
00000000
00000000
00000000
00000001
00000001
00000001
00000001
00000001
9 of 11
Convert this IP address to binary:
147.255.255.254
A.
B.
C.
D.
E.
10010111
10010011
10010111
10010011
10010011
00000000
11111111
11111111
11111111
11111111
00000000
00000000
11111111
11111111
11111111
00000001
00000001
11111111
11111110
11111101
10 of 11
Convert this subnet mask to binary:
255.255.255.0
A.
B.
C.
D.
E.
11111111
11111111
01111111
11111111
11111111
11111111
00000000
01111111
11111111
11111111
11111111
00000000
01111111
11111111
11111111
11111111
00000000
00000000
00000001
00000000
11 of 11
After 4.4
Which TCP header value is
dynamically adjusted to react to
network congestion?
A.
B.
C.
D.
E.
Source Port
Destination Port
Window Size
Acknowledgement Number
Sequence Number
1 of 3
A computer is ready to send a file to another
computer over a network link with a latency
of 100 ms (for a round-trip). How long will it
have to wait before it can start sending data
via TFTP?
A.
B.
C.
D.
E.
No Delay
50 ms
100 ms
150 ms
200 ms or more
2 of 3