Tech QOTD – Throughput & Resilience – Network+

LAG

Take a look at the figure and answer the following question.

There are two patch cables connecting the router and the switch. What technology am I attempting to make use of?

(see answer below and video response.)

[…] read more

Tech QOTD – Topic: Ports (Network+)

ports

Answer the multiple choice question shown in the figure. (Click the figure to enlarge. Text version below.)

(see answer below and video response.)

You are making an outbound TCP connection from your Windows 10 system to a Windows server. Which of following ports will your computer most likely use?

A. 88 B. 389 C. 3389 D. 15074

[…] read more

Tech QOTD – Topic: Interconnecting Office Networks (Network+)

office-network-interconnectivity

Answer the multiple choice question shown in the figure. Click the figure to enlarge. Text version below.

A small office has set up an addition in a nearby office space just 20 feet away within the same building. The network administrator is assigned to provide connectivity between the existing office and the new office. Which of the following solutions provides the most security from […] read more

Tech QOTD – Topic: Network Switching (Network+)

switching2

There have been IT consultants in and out of your office (and server room) over the past couple of days. This morning when you arrive to work you get several reports of intermittent network connections from people in the Facilities department and the Marketing department.

Examine the generic network diagram and answer the following questions.

Click the figure to enlarge.

Why are the two departments […] read more

Tech QOTD – Topic: IP Configuration Issue (Network+)

server-IP-issue

Answer the questions! Click the figure to enlarge. Text version below.

Instead of waiting for a graceful shutdown, a co-worker shut off the main Windows server by disconnecting the power, then plugged it back in and restarted it. It appeared to be working fine, but now users on the network complain that they cannot connect to their Z: drives. The path for these mapped […] read more

Tech QOTD – Topic: OSI Model and VPN Connectivity (Network+)

osi

Examine the figure and answer the question. (Click the image to enlarge)

(see answer below and video response.)

[…] read more

Tech QOTD – Topic: E-mail Connectivity and Security (Network+)

e-mail-connectivity-security

A user (Mr. Underhill) requires a secure e-mail connection using port 995 for incoming mail and port 465 for outgoing mail. Currently, the user cannot send or receive e-mail and all tests fail. Examine the figure and answer the following questions.

Why can’t the user receive e-mail? What should you do to check why the user can’t send e-mail?

(Click the image to enlarge)

[…] read more

Tech QOTD – Topic: DHCP (Network+)

dhcp1

Tech Question of the Day (Network+): A system cannot connect to other IPv4-based systems. Examine the figure.

1. What command should we try first to enable IPv4 connectivity for the Ethernet 2 network adapter?

2. What local port will be opened by this Windows client when attempting to discover a DHCP server?

(Click the image to enlarge)

(see answer below and video response.)

[…] read more

Tech QOTD – Topic: Wireless Access (Network+)

wireless

Tech Question of the Day (Network+): Examine the figure. The WAP is installed in a coffee shop. The owner wants to allow users wireless access from anywhere in the shop, but not from outside the shop. The owner also wants to make sure that “Laptop-author” can’t get into the network – ever. Question: In what two ways can you modify the WAP to comply with […] read more

Tech QOTD : Speed? No, it’s DTR we really care about…. (Network+)

ethernet

Tech Question of the Day (Network+): Watch the video. Answer the questions carefully. (see answer below and video response.)

Transcript Here we have a gigabit Ethernet router (AC5400 wireless). The ports on the back are known as Ethernet gigabit ports. Now let’s get more specific. Question: What two technical specifications can be used to describe these ports and the cabling that connects to them? […] read more

Tech QOTD : Statistically speaking. (Network+)

netstat

Tech Question of the Day (Network+): Examine the figure. What command – and option – was issued here? This is a Windows 10 computer and there are only TCP connections listed in the results, no UDP connections.

(see answer below and video response.)

[…] read more

Tech Question of the Day (Network+) – Start with the simple stuff…

20170104_143504

Tech Question of the Day (Network+): A technician has identified a computer networking problem (no connectivity). What is the next step according to the CompTIA Network+ troubleshooting process? (see answer below and video response.)

As a bonus, what is really wrong here? Remember, when troubleshooting, always start with the simple stuff.

[…] read more

Network+ QOTW: Let’s play ping pong…

ping

Network+ Question of the day: What will happen when we press Enter after typing the command shown in the figure? As a bonus, what is the name of the server involved and how would you figure that out in the Command Prompt? (several answers are possible) (see answer below and video response.)

[…] read more

Network+ QOTD: We’re only half way there!

wireless-issue

Network+ Question of the day: Users are required to authenticate to the wireless network using their domain usernames and passwords. The system worked fine for three months. Then, last night, the router was updated. This morning, no one can connect. What is the problem? (see answer below and video response.)

[…] read more

Network+ QOTD: The network administrator is the gatekeeper…

gateway

Network+ Question of the day: What is wrong with the IP configuration of the main Ethernet adapter in the figure? (see answer below and video response.)

[…] read more

Network+ QOTD: Don’t flip-flop when it comes to technology….

03fig26

Network+ Question of the day: What is wrong in the figure? (see answer below and video response.)

[…] read more

Network+ QOTD: Data may need to be coaxed through the network…

coax-001-f-connector

Network+ Question of the day: What is displayed in the figure? (Bonus: what might you use it with?) (See answer below)

[…] read more

Network+ QOTD: When and if your configuration is correct…

ifconfig

Network+ Question of the day: What command was issued in the figure? Bonus: Is this system part of a classful or classless IP network? (See answer below)

[…] read more

Network+ QOTD: Do the twist.

wii-cabling

Network+ Question of the day: What kind of network cable is shown in the following photograph? (See answer below)

[…] read more

                      
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