Tugas Besar Dasar Keamanan Komputer [PDF]

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TUGAS BESAR 1 DASAR KEAMANAN KOMPUTER RABU, 19.30-22.00 (WARUNG BUNCIT)



DOSEN: NUR ANI, ST, MMSI



NAMA MHS: ANGGANA FAJAR SUTEJA



NIM MHS: 41519120072



Write your answers in the table provided below 1. What does a lock icon symbolize besides a website name? a) The website needs a password to be accessed b) The website cannot be accessed without the site admin’s permission c) The website is a secure website d) The website is not accessible at the moment 2. Horace is a 64 year-old man who worked as an accountant for SN Associates before his retirement. The company gifted him a laptop at the time of his retirement. Since Horace was not a technically savvy person, he did not install any applications on his laptop, and only used it for checking his email and playing poker online. After some time, Horace’s laptop started giving him problems. It crashed frequently, often displayed the Blue Screen of Death (BSOD), and unwanted windows kept popping up whenever he went online. When Horace took his laptop to the service center, he was told that his laptop was infected with malware. Which software should Horace have installed to prevent malware infection in his laptop? a) Adobe Reader c) One Drive b) Antivirus software d) Skype 3. Ruth Cole is a sales manager and travels extensively on business. She regularly updates and stores clients’ data on a remote data storage device via the Internet, so that in case she loses her laptop or it crashes for some reason, she does not lose the data which is essential to carrying out her work. Which type of data backup is Emma using to carry out her daily work? a) Differential backup c) Online data backup b) Incremental backup d) Full system backup 4. Which of the following is the strongest password? a) Domike* b) Donna1992



c) donnamike92 d) Pa#72tLe



5. Luke works as an analyst for AS Pvt. Ltd. His job there is to analyze statistics and records obtained from people to improve the sales of the company. However, recently the statistics and records given to him have been incorrect, thus leading to gross miscalculations and wrong predictions on his part. Which of the terms listed below, best describes these statistics and records that are incorrect? a) Information c) Archives b) Data d) Indicators



6. Duke is taking some of the best pictures he has yet as an amateur photographer in a pen drive to get his work assessed by an expert. On the subway an unknown person picks his pocket. Along with his wallet Duke also lost the pen drive with his pictures. Since he had not made any more copies of those pictures, he lost them forever. What type of data loss is this? a) Hardware theft c) Natural disaster b) Malware attack d) Software theft 7. Which of the following software programs runs on the internet and allows users to find, access, and display web pages? a) Email c) Extensions b) Web browsers d) Search engine 8. Infra Tech Inc. is an international IT company with offices in Dubai, Singapore, and Australia. To have continuity of business practice, it is imperative that all the branch offices be able to communicate amongst themselves. Which of the following network systems would be suitable for data communication between the employees of all branches of Infra Tech Inc.? a) Ethernet c) Virtual Private Network? b) Local Area Network d) Wide Area Network 9. Which of the following terms refers to the process that ensures accuracy of the sender and receiver of a message? a) Nonrepudiation c) Authenticity b) Data d) Availability 10. Which of the following terms refers to a collection of information that defines or describes the user and his or her interests? a) Facebook group c) Timeline b) Account settings d) Profile 11. Sam uses his work laptop to watch pirated movies at home sometimes. When he tried to watch the latest movie he downloaded, the movie file did not play even after trying on several different players. Within a day of this, Sam noticed that many of his files were vanishing one after the other from his laptop even though neither he nor anyone else deleted them. The network administrator of his company, after taking a look at his computer told him that the movie files, which did not play, definitely had something to do with this peculiar behavior. What type of data loss could this be? a) Software failure c) Human error b) Computer virus d) Natural disaster 12. Alex, the coach of Manchester United, called up Wayne, the captain of the team, to discuss the tactics they would employ in the upcoming Champions League Final. The following day, Alex received an email with the transcript of the conversation he had with Wayne. The sender of the email threatened to make Alex’s tactics public, if he did not pay him $5000. Which form of mobile device attack was Alex a victim of? a) Social engineering c) Eavesdropping b) Man in the middle attack d) Phishing



13. Raymond received an email from an official claiming to be from his bank. The email requested Raymond to send his personal details since the customer database of the bank was being updated. Upon confirmation from the bank, Raymond was told that the bank had not sent any emails asking for the personal details of their customers. Which cyber-attack would Raymond have been a victim of if he had replied to the email? a) Man in the middle attack c) Eavesdropping b) War driver d) Phishing 14. Ellie, an 18 year-old student, shares her Windows computer with her younger brother, Adam. Adam is very mischievous and whenever he is on the computer, he ruins Ellie’s college assignments. Ellie, who is fed up of this decides to encrypt the drive that contains her assignments. She uses inbuilt Windows software to encrypt the drive so that Adam cannot access the drive. Which software did Ellie use? a) BitLocker c) Skype b) Adobe d) SPAMfighter 15. Fred, a 14 year-old boy, is an only child. Fred loves spending time on his Mac OS X browsing the internet. When his parents are not at home, he spends hours at a stretch on the computer. Once, when Fred’s parents come home late from work and find him on the Mac, they decided to limit his computer time. Enabling an inbuilt feature in the Mac, Fred’s parents limit his computer time to two hours daily. Which MAC OS X feature did Fred’s parents enable? a) FileVault c) Jump lists b) Parental control d) UAC slider bar 16. Which of the following helps to backup data on a Mac? a) Extensions c) Internet Accounts b) App Store d) Time Machine 17. Lucy, a 55 year-old woman, was not a technically savvy person. She did not install or enable any applications on her computer, and only used it for looking up recipes and knitting patterns. After some time, Lucy’s computer started giving her problems. It often displayed the Blue Screen of Death (BSOD) and unwanted windows kept popping up whenever she went online. When a computer technician checked Lucy’s computer, it was discovered that her computer was infected with malware. Which inbuilt Windows software should Lucy have enabled to prevent malware infection in her computer? a) Task manager c) Simple file sharing b) Jump lists d) Windows Defender 18. Sally is a 16-year-old high school student who is extremely attached to her laptop. She uses it to download and watch episodes of her favorite sitcom. While watching one of the episodes, her laptop switched off automatically a couple of times. Suspecting a malware infection, she opened the antivirus software on her laptop and chose a technique, which examined all files on the memory and hard disk in order to identify and locate the malware. Which antivirus technique did Sally employ? a) Bookmarks method b) Integrity checking



c) Heuristics analysis



d) Scanning



19. Which of the following terms refers to software that attackers create to install on a victim’s computer in order to compromise its security? a) Lockbin c) Dropbox b) Malware d) Bitlocker 20. Amy received an email from an official claiming to be from ABC Parcel Services. The email asked her to collect a gift parcel sent by her friend three weeks ago. The service claimed that they were unable to deliver the parcel to Amy, as the address provided was wrong. The service asked her to print out the attached invoice copy, fill it, and collect the package from the branch office located in her city. Which type of email security threat could Amy have faced, if she clicked or downloaded the attachment? a) Phishing c) Malicious user redirection b) Hoax mail d) Malicious email attachment 21. Daniel, a bank officer, communicates with his clients through emails on a daily basis. Recently, he noticed that his Gmail inbox was filled with unsolicited emails. The cluttered inbox annoyed him, as it was difficult to filter the important emails. Hence, he decided to find a solution for it. Upon inquiry, a service provider told him that he could use software which automatically filters out the unsolicited emails. This software would not only protect his Gmail account, but also protect all the email accounts configured on his email client. Which of the following tools did Daniel probably enquire about? a) Norton c) Avast Pro b) Kaspersky d) SPAMfighter 22. Isaac is transferring all the data from his computer to an external drive as he wants to format his laptop. While moving the data, he accidentally hits delete instead of cut on one of the files and without realizing, hit the enter key when the computer prompted to confirm his action. As the file was a huge one, it did not go to the recycle bin and got permanently deleted. What type of data loss is this? a) Software failure c) Human error b) Computer virus d) Hardware theft 23. Hermione is a 21 year-old college student. She loves spending time on Facebook. However, with her final exams approaching, she feels that spending time on Facebook will harm her exam results. Hence, she enables a particular Facebook feature, with the help of which, she will not get any emails or notifications from Facebook. Which Facebook feature did Hermione use? a) Who can look me up c) Login alerts b) Deactivate account d) Where you’re logged in 24. Certain software applications add or modify a particular feature in a browser. A few versions allow users to block ads, watch online videos, or IM with friends. What is this application called? a) ActiveX c) Cookies b) Extensions d) Java



25. Samuel, a network admin in an IT firm, has just discovered a phishing site known for targeting corporate entities. Several employees have received emails with the domain name, which is the same as that of this site. In order to prevent the company’s network from being corrupted, Samuel decides to block all incoming and outgoing traffic from that site. Which of the following defense mechanisms can Samuel use to implement this? a) Encryption c) Firewall b) Virus d) Disk encryption



FILL THE ANSWER IN THIS TABLE WITH CROSS (X) NO A B C D



1 X



2



NO A B C D



11



12



X



X



NO A B C D



21



3



4



X



5



6 X



X



7



8



X X



14 X



X



15



X



X



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17



18



X X



22



10



X



X



13



9



24



X



X



25



X



19



20



X X



23



X



X



X



X