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Q511. Which of the following should be enabled in a laptop’s BIOS prior to full disk encryption?
Trusted Platform Module (TPM) is a hardware-based encryption solution that is embedded in the system’s motherboard and is enabled or disable in BIOS. It helps with hash key generation and stores cryptographic keys, passwords, or certificates.
Q512. Which of the following solutions provides the most flexibility when testing new security controls prior to implementation?
A. Trusted OS
B. Host software baselining
C. OS hardening
Virtualization is used to host one or more operating systems in the memory of a single host computer and allows multiple operating systems to run simultaneously on the same hardware. Virtualization offers the flexibility of quickly and easily making backups of entire virtual systems, and quickly recovering the virtual system when errors occur. Furthermore, malicious code compromises of virtual systems rarely affect the host system, which allows for safer testing and experimentation.
Q513. Matt, an IT administrator, wants to protect a newly built server from zero day attacks. Which of the following would provide the BEST level of protection?
Intrusion prevention systems (IPS), also known as intrusion detection and prevention systems (IDPS), are network security appliances that monitor network and/or system activities for malicious activity. The main functions of intrusion prevention systems are to identify malicious activity, log information about this activity, attempt to block/stop it, and report it.
Intrusion prevention systems are considered extensions of intrusion detection systems because they both monitor network traffic and/or system activities for malicious activity. The main differences are, unlike intrusion detection systems, intrusion prevention systems are placed in-line and are able to actively prevent/block intrusions that are detected. More specifically, IPS can take such actions as sending an alarm, dropping the malicious packets, resetting the connection and/or blocking the traffic from the offending IP address. An IPS can also correct Cyclic Redundancy Check (CRC) errors, unfragment packet streams, prevent TCP sequencing issues, and clean up unwanted transport and network layer options. Host-based intrusion prevention system (HIPS) is an installed software package which monitors a single host for suspicious activity by analyzing events occurring within that host. A Host-based intrusion prevention system (HIPS) is an installed software package which monitors a single host for suspicious activity by analyzing events occurring within that host. As a zero-day attack is an unknown vulnerability (a vulnerability that does not have a fix or a patch to prevent it), the best defence would be an intrusion prevention system.
Q514. Mike, a user, states that he is receiving several unwanted emails about home loans. Which of the following is this an example of?
A. Spear phishing
Spam is most often considered to be electronic junk mail or junk newsgroup postings. Some people define spam even more generally as any unsolicited email. However, if a long-lost brother finds your email address and sends you a message, this could hardly be called spam, even though it is unsolicited. Real spam is generally email advertising for some product sent to a mailing list or newsgroup. In addition to wasting people's time with unwanted e-mail, spam also eats up a lot of network bandwidth. Consequently, there are many organizations, as well as individuals, who have taken it upon themselves to fight spam with a variety of techniques. But because the Internet is public, there is really little that can be done to prevent spam, just as it is impossible to prevent junk mail. However, some online services have instituted policies to prevent spammers from spamming their subscribers. There is some debate about why it is called spam, but the generally accepted version is that it comes from the Monty Python song, "Spam spam spam spam, spam spam spam spam, lovely spam, wonderful spam". Like the song, spam is an endless repetition of worthless text. Another school of thought maintains that it comes from the computer group lab at the University of Southern California who gave it the name because it has many of the same characteristics as the lunch meat Spam: Nobody wants it or ever asks for it. No one ever eats it; it is the first item to be pushed to the side when eating the entree. Sometimes it is actually tasty, like 1% of junk mail that is really useful to some people. The term spam can also be used to describe any "unwanted" email from a company or website --typically at some point a user would have agreed to receive the email via subscription list opt-in --a newer term called graymail is used to describe this particular type of spam.
Q515. Which of the following is a security advantage of using NoSQL vs. SQL databases in a three-tier environment?
A. NoSQL databases are not vulnerable to XSRF attacks from the application server.
B. NoSQL databases are not vulnerable to SQL injection attacks.
C. NoSQL databases encrypt sensitive information by default.
D. NoSQL databases perform faster than SQL databases on the same hardware.
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Q516. Identifying a list of all approved software on a system is a step in which of the following practices?
A. Passively testing security controls
B. Application hardening
C. Host software baselining
D. Client-side targeting
Application baseline defines the level or standard of security that will be implemented and maintained for the application. It may include requirements of hardware components, operating system versions, patch levels, installed applications and their configurations, and available ports and services. Systems can be compared to the baseline to ensure that the required level of security is being maintained.
Q517. Which of the following encompasses application patch management?
A. Configuration management
B. Policy management
C. Cross-site request forgery
Patch management is the process of maintaining the latest source code for applications and operating systems by applying the latest vendor updates. This helps protect a systems from newly discovered attacks and vulnerabilities. A part of patch management is testing the effects of vendor updates on a test system first to ensure that the updates do not have detrimental effects on the system and its configuration, and, should the updates have no detrimental effects on the test systems, backing up the production systems before applying the updates on a production system.
Q518. When reviewing a digital certificate for accuracy, which of the following would Matt, a security administrator, focus on to determine who affirms the identity of the certificate owner?
A. Trust models
D. Recovery agent
A certificate authority (CA) is an organization that is responsible for issuing, revoking, and distributing certificates. The CA affirms the identity of the certificate owner.
Q519. Which of the following explains the difference between a public key and a private key?
A. The public key is only used by the client while the private key is available to all. Both keys are mathematically related.
B. The private key only decrypts the data while the public key only encrypts the data. Both keys are mathematically related.
C. The private key is commonly used in symmetric key decryption while the public key is used in asymmetric key decryption.
D. The private key is only used by the client and kept secret while the public key is available to all.
The private key must be kept secret at all time. The private key is only by the client. The public key is available to anybody.
Q520. Users are encouraged to click on a link in an email to obtain exclusive access to the newest version of a popular Smartphone. This is an example of.
Scarcity, in the area of social psychology, works much like scarcity in the area of economics. Simply put, humans place a higher value on an object that is scarce, and a lower value on those that are abundant. The thought that we, as humans, want something we cannot have drives us to desire the object even more. This idea is deeply embedded in the intensely popular, “Black Friday” shopping extravaganza that U.S. consumers participate in every year on the day after Thanksgiving. More than getting a bargain on a hot gift idea, shoppers thrive on the competition itself, in obtaining the scarce product.
In this question, people want the brand new latest version of a smartphone. The temptation of being one of the first to get the new phone will tempt people into clicking the link in the email.