A+ Guide to IT Technical Support (Hardware and Software) (MindTap Course List)
9th Edition
ISBN: 9781305266438
Author: Jean Andrews
Publisher: Cengage Learning
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Expert Solution & Answer
Chapter 15, Problem 1RTB
Explanation of Solution
Given:
Dial-up networking
Cable Internet
Fast Ethernet
3G
To find: To arrange the given networking technologies in increasing order of their speed: dial-up networking, cable Internet, Fast Ethernet, and 3G.
Solution:
Network technologies such as dial-up networking, cable Internet, etc. are used to create networks of different characteristic bandwidths.
The speed of Dial-up networking technology is up to 56 Kbps.
The speed of 3G third generation cellular is up to 4 Mbps.
The speed of Fast Ethernet is 100 Mbps.
The speed of cable Internet is up to 160 Mbps. The actual speed depends upon the type of cable employed.
Hence, the order is: Dial-up networking, 3G, Fast Ethernet, and cable Internet.
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make corrections of this program based on the errors shown. this is CIS 227 .
Create 6 users: Don, Liz, Shamir, Jose, Kate, and Sal.
Create 2 groups: marketing and research.
Add Shamir, Jose, and Kate to the marketing group.
Add Don, Liz, and Sal to the research group.
Create a shared directory for each group.
Create two files to put into each directory:
spreadsheetJanuary.txt
meetingNotes.txt
Assign access permissions to the directories:
Groups should have Read+Write access
Leave owner permissions as they are
“Everyone else” should not have any access
Submit for grade:
Screenshot of /etc/passwd contents showing your new users
Screenshot of /etc/group contents showing new groups with their members
Screenshot of shared directories you created with files and permissions
⚫ your circuit diagrams for your basic bricks, such as AND, OR, XOR gates and 1 bit multiplexers,
⚫ your circuit diagrams for your extended full adder, designed in Section 1 and
⚫ your circuit diagrams for your 8-bit arithmetical-logical unit, designed in Section 2.
1 An Extended Full Adder
In this Section, we are going to design an extended full adder circuit (EFA). That EFA takes 6 one bit inputs: aj, bj,
Cin, Tin, t₁ and to. Depending on the four possible combinations of values on t₁ and to, the EFA produces 3 one bit
outputs: sj, Cout and rout.
The EFA can be specified in principle by a truth table with 26 = 64 entries and 3 outputs. However, as the EFA
ignores certain inputs in certain cases, it is easier to work with the following overview specification, depending only
on t₁ and to in the first place:
t₁ to Description
00
Output Relationship
Ignored
Inputs
Addition Mode
2 Coutsjaj + bj + Cin, Tout= 0
Tin
0 1
Shift Left Mode
Sj = Cin,
Cout=bj, rout = 0
rin, aj
10
1 1
Shift Right…
Chapter 15 Solutions
A+ Guide to IT Technical Support (Hardware and Software) (MindTap Course List)
Ch. 15 - Prob. 1RTBCh. 15 - Prob. 2RTBCh. 15 - Prob. 3RTBCh. 15 - Prob. 4RTBCh. 15 - Prob. 5RTBCh. 15 - Prob. 6RTBCh. 15 - Prob. 7RTBCh. 15 - Prob. 8RTBCh. 15 - Prob. 9RTBCh. 15 - Prob. 10RTB
Ch. 15 - Prob. 11RTBCh. 15 - Prob. 12RTBCh. 15 - Prob. 13RTBCh. 15 - Prob. 14RTBCh. 15 - Prob. 15RTBCh. 15 - Prob. 16RTBCh. 15 - Prob. 17RTBCh. 15 - Prob. 18RTBCh. 15 - Prob. 19RTBCh. 15 - Prob. 20RTBCh. 15 - Prob. 21RTBCh. 15 - Prob. 22RTBCh. 15 - Prob. 23RTBCh. 15 - Prob. 24RTBCh. 15 - Prob. 25RTBCh. 15 - Prob. 26RTBCh. 15 - Prob. 27RTBCh. 15 - Prob. 28RTBCh. 15 - Prob. 29RTBCh. 15 - Prob. 30RTBCh. 15 - Prob. 1TCCh. 15 - Prob. 2TCCh. 15 - Prob. 3TC
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