When you're studying for the Network+ exam, you've got a lot of new acronyms to learn! One of the basics is CSMA/CD, which stands for Carrier Sense Multiple Access with Collision Detection. That's quite a mouthful, but it's an important term...英国华人论坛
In the previous Network+ exam tutorial, we talked about how collisions occur when data sent by two hosts ona shared Ethernet segment transmit data at the exact same time. Collisions result in the colliding data being unusable, which means th...英国华人论坛
In yesterday's Network+ tutorial, we talked about the importance of Address Resolution Protocol (ARP) in today's networks. A host PC must have the MAC and IP addresses of a remote host in order to send data to that remote host, and it's ARP...英国华人论坛
The Physical layer of the OSI model isn't the most exciting or interesting to work with, but it's the foundation for everything we do in networking. The same goes for the physical side of networking - whether it's cable types, network topolo...英国华人论坛
If there's one thing that can be a bit confusing to many Network+ certification exam candidates, it's the concept of ports and sockets. Well, it was confusing to me when I got started with computer certifications! Let's take a look at ports...英国华人论坛
Part of the challenge of passing the Network+ exam is learning about all the different types of hardware a network requires. Today well take a look at a vital part of network connectivity, the Network Interface Card (NIC, pronounced nick...英国华人论坛
Passing your Network+ exam is the first step on the way to becoming a master network troubleshooter, and that's where you need to be. The average network admin spends 90% of their time troubleshooting and 10% installing hardware and software...英国华人论坛
Part of passing the Network+ exam and being an outstanding network administrator is being prepared for disaster. Sometimes that's a disaster on a relatively small scale, such as a drive failure. If you're running data backups on a regular ba...英国华人论坛
As a CompTIA Network+ exam candidate, youre probably familiar with DHCP but just in case, were going to review DHCP basics here and then go into a discussion of DHCP Relay Agents.When it comes to assigning an IP address to all the PCs...英国华人论坛
To pass your Network+ certification exam, you must know the differences between hubs, repeaters, bridges, and switches. The differences are straightforward for the most part, so let's examine the basic purpose of these devices.Hubs and repea...英国华人论坛
Passing the CompTIA Network+ certification exam and going on to become a subnetting expert is mastering the basics of IP addressing, and that means knowing the different classes, their default masks, and what these masks mean. Lets get sta...英国华人论坛
Passing the Network+ and CCNA exams demands that you know quite a few port numbers, but they're important to know when working with real-world networks as well. Before we discuss why, here's a partial list of important port numbers to know f...英国华人论坛
Whether youre preparing to pass the Network+ or Cisco CCNA certification exam or not, you must not underestimate the importance of antivirus programs and virus definition updates. With all the attention we pay to viruses and their preventi...英国华人论坛
In the first part of this CompTIA Network+ certification exam tutorial, we looked at the different types of viruses and other invaders trying to get into our network, and how antivirus programs help to stop them. Today, well discuss some t...英国华人论坛
Cisco CCENT And Network+ Certification:What do the terms "physical address", "MAC address", and "hardware address" have in common?Answer: They all describe the same thing a Data Link layer address. The terms physical address and ...英国华人论坛
Lets test your knowledge of important Cisco and CompTIA certification exam topics!CCNA / CCENT / Network+ Exam:A switch receives a frame with a unicast destination MAC, but the switch does not have an entry for that MAC in its bridging tab...英国华人论坛
To help you in your preparation for your Cisco CCNA, CCENT, and CCNP exams, here are some free practice questions covering everything from EIGRP to the OSI model. And for you Network+ and Security+ certification candidates, there are quest...英国华人论坛
Lets test your knowledge of UDP, TCP, smurf attacks, EIGRP, and more with these questions designed to help you prepare for success on your CCENT, CCNA, CCNP, Network+, and Security+ certification exams!CCENT Certification / Network+ Certif...英国华人论坛
Test your knowledge of vital Cisco and CompTIA certification exam topics with these free questions!Network+ / CCENT / CCNA Question:What protocol allows a host to determine the MAC address of another host that is on a different side of the r...英国华人论坛