iClicker Questions CNIT 201E Last revised

After 1.3

When rumors go from one person to another, the final message is different than the starting one. Which communication rule is being violated? A. Identify sender and receiver B. Method C. Language D. Speed and timing of delivery E. Confirmation 1 of 5

What protocol is used to obtain Web pages from a server? A. HTTP B. SMTP C. POP D. XMPP E. SIP 2 of 5

What protocol is used for VoIP phone calls? A. HTTP B. SMTP C. POP D. XMPP E. SIP 3 of 5

What device is this? A. LAN Switch B. LAN Media C. Wireless Media D. WAN Media E. Cloud 4 of 5

What device is this? A. LAN Switch B. Firewall C. Router D. Wireless Router E. Cloud 5 of 5

After 1.44

Which characteristic of network architecture depends on redundant links? A. Fault tolerance B. Scalability C. Quality of service D. Security E. All of the above 1 of 5

Which characteristic of network architecture depends on a hierarchical layered design? A. Fault tolerance B. Scalability C. Quality of service D. Security E. All of the above 2 of 5

Which terms best describe the modern Internet architecture? A. Packet switched connectionless B. Packet switched connection-oriented C. Circuit switched connectionless D. Circuit switched connection-oriented E. None of the above 3 of 5

Which feature of network architecture enables manufacturers to build new devices with confidence that they will work properly with the existing infrastructure? A. Hierarchical layered structure B. Peering C. Standards D. Distributed services E. None of the above 4 of 5

Which traffic type requires the lowest quality of service priority? A. Phone calls B. Streaming video C. Stock purchases D. E. SCADA signals to control power plant machinery 5 of 5

After 1.6

Which of these features are provided in a secure network? A. Confidentiality B. Integrity C. Availability D. All of the above E. None of the above 1 of 4

Which of these features are provided by using checksums? A. Confidentiality B. Integrity C. Availability D. All of the above E. None of the above 2 of 4

Which of these features are provided by a firewall? A. Confidentiality B. Integrity C. Availability D. All of the above E. None of the above 3 of 4

Which of these features are provided by antivirus software? A. Confidentiality B. Integrity C. Availability D. All of the above E. None of the above 4 of 4

Binary Lesson 1 Nybbles

Base Ten Normal Numbers Normal Numbers Each place has one of these values: Each place has one of these values: = 1* * = 1* * Or 1*10^2 + 4*10^1 + 7*10^0 Or 1*10^2 + 4*10^1 + 7*10^0

Base Ten Ones place Number of ones 10^0 Tens place Number of tens 10^1 Hundreds place Number of hundreds 10^2

Base Two Binary Numbers Binary Numbers Each place has one of these values: Each place has one of these values: = 1 * = 3 11 = 1 * = 3 Or 1*2^1 + 2^0 Or 1*2^1 + 2^0

Base Two Ones place Number of ones 2^0 Twos place Number of twos 2^1 Fours place Number of fours 2^2

Counting to 7 Base TwoBase Ten Base TwoBase Ten

Four Bits Make a Nybble s 4s2s1s

Counting to 15 Base Two Base TenBase Two Base Ten Base Two Base TenBase Two Base Ten

Binary Lesson 1 Nybbles

Base Ten Normal Numbers Normal Numbers Each place has one of these values: Each place has one of these values: = 1* * = 1* * Or 1*10^2 + 4*10^1 + 7*10^0 Or 1*10^2 + 4*10^1 + 7*10^0

Base Ten Ones place Number of ones 10^0 Tens place Number of tens 10^1 Hundreds place Number of hundreds 10^2

Base Two Binary Numbers Binary Numbers Each place has one of these values: Each place has one of these values: = 1 * = 3 11 = 1 * = 3 Or 1*2^1 + 2^0 Or 1*2^1 + 2^0

Base Two Ones place Number of ones 2^0 Twos place Number of twos 2^1 Fours place Number of fours 2^2

Counting to 7 Base TwoBase Ten Base TwoBase Ten

Four Bits Make a Nybble s 4s2s1s

Counting to 15 Base Two Base TenBase Two Base Ten Base Two Base TenBase Two Base Ten

iClicker Questions Nybbles

What is 7 in binary? A. 10 B. 100 C D E of 5

What is 101 in decimal? A. 1 B. 2 C. 5 D. 6 E. 7 2 of 5

Convert the decimal value 10 to binary: A. 1 B. 10 C. 2 D E of 5

Convert the binary value 10 to decimal: A. 1 B. 10 C. 2 D E of 5

Convert the binary value 1011 to decimal: A. 1 B. 10 C. 11 D. 13 E of 5