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# Tutor profile: Matthew S.

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Matthew S.
Network Technician for Three Years, Student for two years, and lifelong learner
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## Questions

### Subject:Computer Networking

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Question:

What are the benefits of a ether-channel or port-channel and why use one? Topic: Computer Networking Fundamentals

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Matthew S.

The benefits of a port-channel include redundancy, load balancing, and logical management of a group of ports. Port-channels are common in enterprise networks to allow better management of a group of physical port since a port-channel groups multiple physical ports into one logical port to manage.

### Subject:Computer Certification and Training

TutorMe
Question:

What is the difference between WPA2 and WPS for wireless encryption? Exam: CompTIA A+ 220-1001

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Matthew S.

WPA2 is the best due to its use of an advanced encryption algorithm, TKIP or AES, and is the standard for wireless network security. WPS is not secure as it offers no encryption and if an attacker were to brute force the router all data could be monitored. Choose WPA2 over WPS and other outdated wireless encryption protocols.

### Subject:Algebra

TutorMe
Question:

How would one expand a polynomial? Given 5(s+3)(6s+4).

Inactive
Matthew S.

Given 5(s+3)(6s+4).expand the polynomial. 1. First, multiply the coefficient 5 by (s+3); 5 must be multiplied by each value in the parenthesis. We get 5s+15. 2. Now we have (5s+15)(6s+4). We will expand using FOIL (First, Outer, Inner, Last) to know which terms we will multiply 3. Multiply using FOIL First Terms: 5s * 6s = 30s^2 Outer Terms: 5s * 4 = 20s Inner Terms: 15 * 6s = 90s Last Terms: 15 * 4 = 60 And combine like terms. 4. For the given 5(s+3)(6s+4) polynomial the expanded form is 30s^2 + 110s + 60

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