Expanded Notes: Common Network Threats Parts 1 and 2
... ARP (Address Resolution Protocol) cache poisoning. ARP (Address Resolution Protocol) cache poisoning is another threat that can occur on a network. With ARP cache poisoning, the ARP cache (which maps IP addresses to MAC addresses) is corrupted by an attacker with the end result being that the attack ...
... ARP (Address Resolution Protocol) cache poisoning. ARP (Address Resolution Protocol) cache poisoning is another threat that can occur on a network. With ARP cache poisoning, the ARP cache (which maps IP addresses to MAC addresses) is corrupted by an attacker with the end result being that the attack ...
Network Security Overview
... Internal Threats Internal threats occur when someone has authorized access to the network with either an account on a server or physical access to the wire. They are typically disgruntled former or current employees or contractors. The three types of network attacks are ...
... Internal Threats Internal threats occur when someone has authorized access to the network with either an account on a server or physical access to the wire. They are typically disgruntled former or current employees or contractors. The three types of network attacks are ...
Wireless Security
... interference possible: channel can be same as that chosen by neighboring AP! ...
... interference possible: channel can be same as that chosen by neighboring AP! ...
mobility - INFONETICS, Inc.
... speeds; 128Kbaud-768Kbaud. Less expensive; $30$120/month. Simple 56Kbaud dial-up circuits; $15-$25/month plus cost of phone line. 56Kbaud dial-up lines should be used only as a last resort for ...
... speeds; 128Kbaud-768Kbaud. Less expensive; $30$120/month. Simple 56Kbaud dial-up circuits; $15-$25/month plus cost of phone line. 56Kbaud dial-up lines should be used only as a last resort for ...
PowerPoint File - Regis University: Academic Web Server for Faculty
... external addresses to ensure that no internal addresses escape to the global Internet ...
... external addresses to ensure that no internal addresses escape to the global Internet ...
Chapter 6 slides, Computer Networking, 3rd edition
... point (AP) Basic Service Set (BSS) (aka “cell”) in infrastructure mode contains: wireless hosts access point (AP): base station ad hoc mode: hosts only ...
... point (AP) Basic Service Set (BSS) (aka “cell”) in infrastructure mode contains: wireless hosts access point (AP): base station ad hoc mode: hosts only ...
Network Emulation - School of Computer Science
... – - difficult to accurately capture all aspects of the network • traffic models may be incorrect (Paxson-Floyd 95) • interaction of protocols • accuracy of protocol implementation • Live Testing – + very accurate model of the network – + no conversion of simulated applications needed – - low level o ...
... – - difficult to accurately capture all aspects of the network • traffic models may be incorrect (Paxson-Floyd 95) • interaction of protocols • accuracy of protocol implementation • Live Testing – + very accurate model of the network – + no conversion of simulated applications needed – - low level o ...
Cisco Discovery 1 Module 05 Quiz Picture Descriptions
... a PDA attached to a networked workstation 2. Which three statements are true about binary octets? (Choose three) if a bit is a zero (0), its column value is not counted. The value of each bit in an octet is twice that of the bit to its right. The rightmost bit in an octet has a value of 0 when it is ...
... a PDA attached to a networked workstation 2. Which three statements are true about binary octets? (Choose three) if a bit is a zero (0), its column value is not counted. The value of each bit in an octet is twice that of the bit to its right. The rightmost bit in an octet has a value of 0 when it is ...
Information Security Databases and (Inter)Networks
... – A connection is defined by a source and destination IP address and a source and destination port. (A TCP header contains ports, the IP header the IP addresses.) – “Standard” servers “listen” to predefined (privileged) ports, with numbers below 1024. – Clients use unprivileged ports. – One computer ...
... – A connection is defined by a source and destination IP address and a source and destination port. (A TCP header contains ports, the IP header the IP addresses.) – “Standard” servers “listen” to predefined (privileged) ports, with numbers below 1024. – Clients use unprivileged ports. – One computer ...
Router Architecture
... functionality. Arbitrate the access to switching fabric. Custom hardware/ Processor is used to ...
... functionality. Arbitrate the access to switching fabric. Custom hardware/ Processor is used to ...
Networks
... NOS & applications software, storage Users connect directly to each other’s hard disk ...
... NOS & applications software, storage Users connect directly to each other’s hard disk ...
internet overview lecture slides
... interconnected computer networks that transmit data by packet switching using the standard Internet Protocol (IP) (Wikipedia) “A worldwide network of networks” (Veljkov p1) The World Wide Web (WWW) ...a system of interlinked hypertext documents accessed via the ...
... interconnected computer networks that transmit data by packet switching using the standard Internet Protocol (IP) (Wikipedia) “A worldwide network of networks” (Veljkov p1) The World Wide Web (WWW) ...a system of interlinked hypertext documents accessed via the ...
Lecture #10
... • Semi deterministic response times obtained • Unnecessary waiting times still inherent ...
... • Semi deterministic response times obtained • Unnecessary waiting times still inherent ...
Enterprise Solutions for Small Business
... networks for voice and data communication on university campuses and in corporate environments. These networks offer a robust, cost-efficient, and straightforward means of establishing a redundant network. As an authorized Cisco reseller, we are on the leading edge of the rapidly evolving market for ...
... networks for voice and data communication on university campuses and in corporate environments. These networks offer a robust, cost-efficient, and straightforward means of establishing a redundant network. As an authorized Cisco reseller, we are on the leading edge of the rapidly evolving market for ...
18. Distributed Denial of Service (DDoS) ENEE 757 | CMSC 818V Today’s Lecture
... – DoS by sending junk packets – Hide aQacker locaCon by spoofing IP addresses – Use a botnet to conduct Distributed Denial of Service (DDoS) – Take advantage of protocols that reflect and amplify traffic (e.g. DNS, NTP) ...
... – DoS by sending junk packets – Hide aQacker locaCon by spoofing IP addresses – Use a botnet to conduct Distributed Denial of Service (DDoS) – Take advantage of protocols that reflect and amplify traffic (e.g. DNS, NTP) ...
Introduction
... • Appreciate the complex trade-offs that are inherent in the design of networks • Provide a guided tour of network technologies from the lowest levels of data transmission up to network applications • Learn about the current and de facto networking standards, i.e. internet protocols ...
... • Appreciate the complex trade-offs that are inherent in the design of networks • Provide a guided tour of network technologies from the lowest levels of data transmission up to network applications • Learn about the current and de facto networking standards, i.e. internet protocols ...
The Network Layer
... (a) Two Ethernets connected by a switch. (b) Two Ethernets connected by routers. ...
... (a) Two Ethernets connected by a switch. (b) Two Ethernets connected by routers. ...
1 It is desired to send a sequence of computer screen images over
... 1. It is desired to send a sequence of computer screen images over an optical fiber. The screen is 480 x 640 pixels, each pixel being 24 bits. There are 60 screen images per second. Calculate the Throughput needed. 2. Radio antennas often work best when the diameter of the antenna is equal to the wa ...
... 1. It is desired to send a sequence of computer screen images over an optical fiber. The screen is 480 x 640 pixels, each pixel being 24 bits. There are 60 screen images per second. Calculate the Throughput needed. 2. Radio antennas often work best when the diameter of the antenna is equal to the wa ...
Alternate Study Guide
... devices that need to be accessible to clients on the network; increased control of network resources Dynamic Host Configuration Protocol Automatically assigns IP address, subnet mask, default gateway, and other configuration information The address is returned to the pool for reuse ...
... devices that need to be accessible to clients on the network; increased control of network resources Dynamic Host Configuration Protocol Automatically assigns IP address, subnet mask, default gateway, and other configuration information The address is returned to the pool for reuse ...
Computer Networks, Tanenbaum 2
... a communication subnet. Subnet consists of two distinct components: transmission lines and switching elements. Transmission lines can be copper wire, optical fiber, or even radio links. Switching elements are specialized computers that connect three or more transmission lines. When data arrive on an ...
... a communication subnet. Subnet consists of two distinct components: transmission lines and switching elements. Transmission lines can be copper wire, optical fiber, or even radio links. Switching elements are specialized computers that connect three or more transmission lines. When data arrive on an ...
