Chris Bryant, CCIE (TM) #12933, has been active in the Cisco certification community for years. He worked his way up from the CCNA to the CCIE, and knows what CCNA and CCNP candidates need to know to be effective on the job and in the exam room. He is the owner of , where he sells his popular CCNA and CCNP study aids, including his unique Flash Card Books. He also teaches CCNA and CCNP courses to small groups of exam candidates, ensuring they each receive the individual attention they deserve. Classes are offered over the Internet and in person in select cities. Chris has custom-written the Study Guide and Lab Workbook used in each course - no third-party training materials or simulators are used. You're invited to visit our site and check out our CCNA and CCNP Courses, Flash Card Books, and to sign up for our weekly newsletter written personally by Chris. Chris is always glad to hear from Cisco certification candidates at .
Network Certification Exam Tutorial: Ethernet CSMA/CD Explained 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 to know for both your exam and real-world success.On an Ethernet segment, hosts can send data at any time. As you might guess, that's a bit...... Similar Editorial : by Chris Bryant. | Source : Wireless Network
CCNA/Network+ Certification Tutorial: Collision Domain & Switch In the previous Network+ exam tutorial, we talked about how collisions occur when data sent by two hosts on a shared Ethernet segment transmit data at the exact same time. Collisions result in the colliding data being unusable, which means the hosts must retransmit the data - and all this extra activity slows the network down!Carrier Sense Multiple Access with Collision Detection helps...... Similar Editorial : by www.SemSim.com. | Source : Wireless Network
Network+ Exam Certification Tutorial: The Bus Topology 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 topologies, or network cards, it's not necessarily the most exciting study you'll ever do, but it is the most important. After all, if a network has...... Similar Editorial : by Chris Bryant. | Source : Wireless Network
Network+ Exam Tutorial: Ports, Port Numbers, And Sockets 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 and sockets, and why we need them in the first place.Past Network+ exam tutorials have focused on how two PCs start communicating, but what we've...... Similar Editorial : by Chris Bryant. | Source : Wireless Network
Network+ Exam Tutorial: Becoming A Master Troubleshooter 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, so you better be good at troubleshooting!In my experience, there are two kinds of network troubleshooters in the world:Those who take a structured...... Similar Editorial : by Chris Bryant. | Source : Wireless Network
CompTIA Network+ Tutorial: Hot & Warm Sites, Disaster Recovery 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 basis (and you are, aren't you?), you're prepared for that issue.What is your network's disaster recovery plan from a true disaster, either natural...... Similar Editorial : by Chris Bryant. | Source : Wireless Network
CompTIA Network+ Certification Tutorial: Hubs, Bridges, Switches 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 repeaters both work at the Physical layer of the OSI model. They do not help to direct traffic toward the proper destination, as routers and switches do...... Similar Editorial : by Chris Bryant. | Source : Wireless Network
CompTIA Network+ Certification Tutorial: IP Address Classes 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. Let’s get started!Part of every IP address indicates the network the host is part of, and the other part identifies that particular host. You need to be...... Similar Editorial : by Chris Bryant. | Source : Wireless Network
Network+ / CCNA Exam Tutorial: Port Numbers & Troubleshooting 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 for these certification exams:Ports 20 and 21 are used by File Transfer Protocol (FTP).Port 22 is used by Secure Shell (SSH).Port 23 is used by Telnet...... Similar Editorial : by Rita Fisher. | Source : Wireless Network
CompTIA Network+ Exam Tutorial: Virus & Antivirus Programs Whether you’re 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 prevention, I feel a little silly even saying that. But….If there's one thing you must have working at full capacity in your network, it's the...... Similar Editorial : by Chris Bryant. | Source : Adware Removal Software
CompTIA Network Certification Tutorial: Antivirus Programs 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, we’ll discuss some tips on how to get the maximum protection from your antivirus program.I strongly recommend you choose an antivirus program that offers automatic updates....... Similar Editorial : by Chris Bryant. | Source : Adware Removal Software
CCNA, CCNP, CCENT Exam: Physical Addresses & Hex Conversions 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 “hardware address” refer to the fact that MAC addresses are physically burned into the network hardware, in this case the Network Interface Card (NIC).CCNA...... Similar Editorial : by www.SemSim.com. | Source : Wireless Network
CCNA, CCENT, Network+, Security+: MAC Addresses & VTP Let’s 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 table. What term describes the default action of the switch?A. floodB. filterC. unicastD. dropE. unicastAnswer: A. The frame will be "flooded" - that is, sent out...... Similar Editorial : by www.SemSim.com. | Source : Adware Removal Software
CCNA, CCENT, Network+, Security+: EIGRP & Teardrop Attacks 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 questions for you as well on the OSI model and teardrop attacks.? I’ll be adding A+ certification questions in future articles.? Let’s get started!CCNA 640-802 Exam...... Similar Editorial : by www.SemSim.com. | Source : Adware Removal Software
Cisco CCNA, CompTIA Network+, Security+: Teardrop Attacks & OSPF To help you in your preparation for your Cisco CCNA, CCENT, and CCNP exams, here are some free practice questions covering everything from OSPF to route redistribution. And for you Network+ and Security+ certification candidates, there are questions for you as well on the OSI model and SYN attacks. I'll be adding A+ certification questions in future articles. Let's get started!CCENT / Network+...... Similar Editorial : by Chris Bryant. | Source : Adware Removal Software
