[bs_icon name=”glyphicon glyphicon-chevron-right”] Frame Relay – Frame relay is a secure, private network that utilizes a logical path or “virtual circuit” to allocate bandwidth for high performance transmissions.
Posts Tagged: CompTIA
568A and 568B – The number 568 refers to the order in which the individual wires inside a CAT 5 cable are terminated.
Cable Types :
Wireless networks allow computers to comunicate without the use of cables using IEEE 802.11 standards, also known as Wi-Fi.
[bs_icon name=”glyphicon glyphicon-chevron-right”] Introduction To Network
[bs_icon name=”glyphicon glyphicon-chevron-right”] The Purpose and Properties of Routing
Common IPv4 and IPv6 Routing Protocols
Proper Use of Addressing Technologies
Identify the Following Address Formats
Traceroute – A command-line troubleshooting tool that enables you to view the route to a specified host. This will show how many hops the packets have to travel and how long it takes. In Windows operating systems, the command used is “tracert”.
Common Networking Protocols
Here are the steps for troubleshooting a network
The Types of Wireless Attacks Part 2 CompTIA Security+ Objective 1.2 WPS Attacks Wi-Fi Protected Setup (WPS) allows users to configure a wireless network without typing in the passphrase. Instead, users can configure devices by pressing buttons or by entering a short personal identification number (PIN). For example, a user can configure a new wireless… Read more »
The Types of Wireless Attacks Part 1 CompTIA Security+ Objective 1.2 Replay Attacks A replay attack occurs when an attacker copies a stream of messages between two parties and replays the stream to one or more of the parties. Unless mitigated, the computers subject to the attack process the stream as legitimate messages, resulting in a range… Read more »
CompTIA and Immersive Labs are challenging cybersecurity professionals in the United States and United Kingdom to test their penetration testing skills this month. The two organizations launched the pen test challenge on the opening day of RSA® Conference 2019. “Penetration testing, if done right, is a proven and valuable activity that all organizations should engage… Read more »
The nature of cyberattacks is constantly in flux, always evolving to keep pace with the times. Hacking of websites, theft of credit card information and other personal information has become an almost daily occurrence, along with illegal remittances via Internet banking. Recent years have witnessed the accelerating dissemination of new technologies such as IoT… Read more »
“Richard Clarke, a former counter-terrorism expert for the United Government, once said, “If you spend more on coffee than on IT security, you will be hacked. What’s more, you deserve to be hacked”. While the latter is a tad harsh (we wouldn’t wish a cyber attack on anyone!), the former is certainly true.” If you… Read more »
1. Your manager asks you to implement a system that can filter out unwanted content, such as viruses and unproductive Internet content. The best way to accomplish this would be through a system that implements a:
In this cram guide, we would like to give you some short tips on what to study for the Security+ exam to ensure a great score.
One of the most essential portions of information security is the design and topology of secure networks. What exactly do we mean by “topology?” Usually, a geographic diagram of a network comes to mind.
Some of the Security+ exam will test you on your knowledge of some basic email, Internet, and application security issues. Although the amount of detail of knowledge that is required is quite minimal, you must still have a working knowledge of some simple email and application security concepts.
Physical Security Physical security refers to the aspects of information security that are related to physical threats, such as fire or natural disasters. We will cover some basic physical security threats below:
Public Key Cryptography is a widely-applied form of cryptography commonly utilized in many network transactions.
In here we will learn about different symmetric key algorithms and their key features. More importantly, we will learn about some more key concepts related to cryptography as it applies to both symmetric and asymmetric algorithms.
Networking Overview In subsequent chapters of this study guide, we will take a look at different security topologies or ways that networks can be set up with security in mind.
[bs_icon name=”glyphicon glyphicon-chevron-right”] What is a Firewall? A firewall is any hardware or software designed to prevent unwanted network traffic. Some firewalls are simplistic in nature;
[bs_icon name=”glyphicon glyphicon-chevron-right”] Introduction to Cryptography
Viruses, Trojan Horses, Worms Despite all the hype about viruses and worms, the Security+ exam actually does not heavily test on viruses and the like.
One of the most ever-present and ancient uses of the Internet and networking has been to provide remote access to networks or network resources.
A key aspect to any war is to know your enemy. If you consider the battle against malicious users a war, then understanding the attacks that they use is crucial.
Incident response [bs_icon name=”glyphicon glyphicon-chevron-right”] Concept and procedures
SNMP: It (SNMP) is a mainstream convention for system administration. It is utilized for gathering data from, and designing, system gadgets, for example, servers, printers, centers, switches, and switches on an Internet Protocol (IP) system.
Tunneling, VPN, and IPSec
Identify Commonly Used TCP/UDP Ports
Definition – What does Malicious Software (Malware) mean? Malicious software, commonly known as malware, is any software that brings harm to a computer system. Malware can be in the form of worms, viruses, trojans, spyware, adware and rootkits, etc., which steal protected data, delete documents or add software not approved by a user.
Wireless encryption protocols include:
Common networking command-line tools include the following:
Bluetooth is a short-range technology aimed at simplifying communications and synchronization among network devices. Bluetooth is divided into three classes:
Wireless Ethernet Versions: (Name – Data Transfer Rate – Frequency)
Cabling Standards include:
Networking Protocols include: FTP – File Transfer Protocol : Port 21
Exam Cram: LAN = Local Area Network WAN = Wide Area Network MAN = Metropolitan (or Municipal) Area Network PAN = Personal Area Network
[bs_icon name=”glyphicon glyphicon-chevron-right”] Custom PCs include: Audio/Video workstations – needs special A/V cards, fast hard drives and multiple monitors
#1 DON’T CRAM #2 DO PLAN #3 TAKE A BREAK #4 MIX IT UP #5 PICK YOUR TOPICS #6 FIND PRACTICE TESTS #7 USE TEST PREP MATERIALS
Wireless encryption protocols include :
Switches connect computers together in a LAN.
ATX 12V 2.x Power Supplies connect to the motherboard by way of 24-pin cable + 4-pin for CPU and 6 or 8-pin for video. Advantages of the ATX motherboard The ATX motherboard includes advanced control facilities, where the BIOS program continually checks the CPU temperature and voltages, the cooling fans RPM, etc. If… Read more »
IPv4 addresses are 32 bit dotted-decimal numbers (like 192.168.1.1) and can be statically (manually) inputed or dynamically (automatically) assigned by DHCP.
CompTIA 6-Step Troubleshooting Process: