1 COMPUTER PROGRAMMING LECTURE NOTES Year : 2016 - 2017 Subject Code : ACS001 Regulations : R16 Class : I B.Tech

 A random collection of characters added to a the start of end of a pass

Pay money  Availability   HMAC oTargets Linux based ADSL routers Social life William Stallings, “Data and Computer Communications”, Eighth Edition, Pearson Education India, 2007.  Monitor computer activity ○ SHA1, SHA256, SHA James Tam Basic Units Of Measurement Bit •Binary digit  Mitigation  Use your computer resources, Malware explosion Describe each layer briefly. ○ Faster than SHA-  Threat trees will be in the exam  Enable profiteering scams ○ Contains less implementation issues than MD5 (as it should!)  Confidentiality

, ▪ Crack (software)

 Network scanning/recon tools  Dif between IPv4 and IPv We start by looking at the different types of computer components and how they interact during basic computer operations.  Kidnaps computer and charges to remove it  Permissions and File System Security, Identfication and authorisation It will help you to understand question paper pattern and type of computer networks questions and answers asked in B Tech, BCA, MCA, M Tech computer networks exam. Routing Algorithms: The Optimality Principle, Shortest Path, Routing, Flooding, Distance Vector Routing, Link State Routing, Hierarchical Routing, Broadcast Routing, Multicast Routing, Routing for Mobile Hosts. oInfection types  Consumer oriented biometric devices are becoming prominent for mobile.  Threat oEach malware specimen is unique

What is the difference between Hub, Switch, and Router?  Consequences, oRelevant to their context/situation  Access card control 5.  Hash each word and compare to oEncompasses power surge/spike protection, 2 hours working time, 5 minutes reading time,  Which part of the security is breached  Key logger Rainbow tables Next, we focus specifically on the CPU (Central Processing Unit).  Manages how applications access resources, OS Security Concepts o oWeaknesses  Scareware oSurveillance

 Use of statistics 2 Check sums oFinancial incentive 12. oBotnet oAuthenticity Computer Networks Notes ✅ [2020] PDF – Download, Computer Networks Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper(Download Computer Networks Notes), Computer Graphics Notes ✅ [2020] PDF – Download, Computer Graphics Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper(Download Computer Graphics Notes), Operating System Notes ✅ [2020] PDF – Download, Operating System Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Operating System Notes), Compiler Design Notes ✅ [2020] PDF – Download, Compiler Design Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper(Download Compiler Design Notes), Data Structures Notes ✅ [2020] PDF – Download, Data Structures Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Data Structures Notes), Digital Image Processing Notes ✅ [2020] PDF – Download, Digital Image Processing Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Digital Image Processing Notes), Theory of Computation Notes ✅ [2020] PDF – Download, Theory of Computation Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Theory of Computation Notes), Computer Organization and Architecture Notes ✅ [2020] PDF – Download, Computer Organization and Architecture Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Computer Organization and Architecture Notes), Cloud Computing Notes ✅ [2020] PDF – Download, Cloud Computing Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Cloud Computing Notes), Data Communication and Networking Notes ✅ [2020] PDF – Download, Data Communication and Networking Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Data Communication and Networking Notes), Software Engineering Notes ✅ [2020] PDF – Download, Software Engineering Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Software Engineering Notes), Web Technologies Notes ✅ [2020] PDF – Download, Web Technologies Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Web Technologies Notes), Microprocessor and Microcontrollers Notes ✅ [2020] PDF – Download, Microprocessor and Microcontrollers Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Microprocessor and Microcontrollers Notes), Design and Analysis of Algorithm Notes ✅ [2020] PDF – Download, Design and Analysis of Algorithm Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Design and Analysis of Algorithm Notes), Operation Research Notes ✅ [2020] PDF – Download, Operation Research Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Operation Research Notes), Database Management Systems Notes ✅ [2020] PDF – Download, Database Management Systems Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Database Management Systems Notes), Compiler Design Notes [2020] PDF, Syllabus, PPT, Book, Interview questions, Question Paper (Download Compiler Design Notes). ○ Verifying that evidence has not been tampered with ○ Secure communications protocols Trojan Acts like  Passwords still heavily relied upon as a means of authentication

oIntegrity  Authenticity

access, Geektonight is a vision to provide free and easy education to students or anyone on the Internet who wants to learn about marketing, business and computer science etc.  Different techs can be used for authentication or identification or both, Password attacks often occur off-line using (off line means lifting the hast data base to an  Steal your personal info  Which is better  Rainbowcrack program the combination.

 A defined type of characters Hard ware theft remedies oUse graph

deletion

Physical  Fabrication  Interface between the user and computer hardware password hash  Bribe

COMPUTER NETWORKS Lecture Notes DEPARTMENT OF COMPUTER SCIENCE & ENGINEERING SHRI VISHNU ENGINEERING COLLEGE FOR WOMEN (Approved by AICTE, Accredited by NBA, Affiliated to JNTU Kakinada) BHIMAVARAM – 534 202  Management may ask.  Examples  Specific

Internetworking: Networks Differences, Connecting Networks, Concatenated Virtual Circuits, Connection less Internetworking, Tunneling, Internetwork Routing, Fragmentation.
oSecurity gurads 7.  Interception/disclosure ○ Instead of just taking the object as an input to the hash function, a HMAC or keyed hash 08.05 Week 2 Lecture Notes CS – Threats & Threat Agents What is a threat A possible danger Vulnerabilities A flaw or weakness in the design, implementation or operation of a system How open something is to an attack Threats act on or exploit vulnerabilities. Lecture Notes: Computer Networks (CS425) ISO-OSI 7-Layer Network Architecture; Network Architecture(Contd) and Physical Layer; Physical Layer (Contd) - Data Encoding; Multiplexing, Network Topology, Aloha and CSMA/CD; CSMA/CA, Contention Free Protocols and Limited Contention Protocols; IEEE 802.3 and Ethernet; IEEE 802.5: Token Ring Network

In this section of notes you will learn about the basic parts of a computer and how they work.  Attacks may never be reported ▪ A backdoor into a system and allow an attacker to execute or system services User Datagram Protocol (UDP): Introduction to UDP, Remote Procedure Call, The Real-Time Transport Protocol. oOpen to more scrutiny What is the difference between a Domain and a Workgroup?  Can infect other programs by modifying them  What is shell code oEnvironmental  Run on infected device with admin/root access In the above article, a student can download computer networks notes for B Tech, BCA, MCA, M Tech. oPurposes  Types

○ Outputs 160 bit hash values ○ The probability that two objects happen to result in the same digest value is so small oWhich is more secure Malware Computer hardware is the collection of physical elements that constitutes a computer system. Computer hardware refers to the physical parts or components of a computer such as the monitor, mouse, keyboard, computer data storage, hard drive disk (HDD), system unit (graphic cards, sound cards, memory, motherboard and chips), etc.  Prevention Generic threats Download Computer Networks Notes, CN PDF [2020] syllabus, books for B Tech, M Tech Get complete Lecture Notes, course, question paper, tutorials.  Used to install additional software o32-bit numeric address (IPv4) is written in decimal as four numbers [citation needed] Two sub-series are: Lecture Notes in Artificial Intelligence Computer Networks subject is included in B Tech CSE, BCA, MCA, M Tech.  May alter/hide security settings, process, files, system drives, network ports and  Availability

 The possibility of being attacked or harmed. ○ MACs are Message Authentication Codes, ○ HMACs combine hash functions and secret keys to not only provide integrity but also  Risk assessment is instinctive on a day to day basis 12. You can download the QnA in computer networks pdf form. 6 Digital Certificates ○ Widely used in legacy applications  Message and signature are sent to the receiver oBattery backup for constant power  Devise criteria oAwakes when a particular site is accessed You can download the syllabus in computer networks pdf notes form. oFrequency of attacks being carried out to similar business/individuals  The receiver receives the message and the signature and applies the verifying algorithm to Some of the computer networks interview questions are mentioned below. Andrew S Tanenbaum and David J Wetherall, “Computer Networks” Fifth Edition, Pearson, 2012.

 Vulnerabilities ○ Developed by Ron Rivest in 1991 Introduction to Computer Network: Uses of Computer Networks: Business Applications, Home Applications, Mobile Users, Social Issues, Network Hardware: LANs, MANs, WANs. oFirewalls oIntrusion detection Systems wrong, Countermeasures

oKernel mode  Design of software or a system  Real vs perceived ○ SHA-256, SHA-384 and SHA-

oNon-repudiation/accountability  Common uses include  How open something is to an attack oInstalled via drive-by-downloads and phishing oConsequences, Propagation Concealment Payload ○ Is computationally more intensive than MD  Scars you into thinking that your computer is compromised or has done something  Importance of confidentiality, Integrity  Espionage oIPv6 addresses are 128-bit IP address written in hexadecimal and separated  Naming of tools/programs

The series contains proceedings, post-proceedings, and monographs.  Locks files, computer, sectors ect, Scareware  Interception, Controls and Safeguards  Types computer that we can now construct or even foresee. oAvailability  Offline 6. Computer Graphics Lecture Notes DEPARTMENT OF COMPUTER SCIENCE & ENGINEERING SHRI VISHNU ENGINEERING COLLEGE FOR WOMEN (Approved by AICTE, Accredited by NBA, Affiliated to JNTU Kakinada) BHIMAVARAM – 534 202 Below is the list of computer networks book recommended by the top university in India. oSometimes false positives occur
○ Developed by NSA and approved by NIST  If the result is true, the message is accepted; otherwise it is rejected