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| Section | Weight | Objectives |
|---|---|---|
| Network Security Controls, Protocols, and Devices | 8% | - Security protocols and devices (firewalls, IDS/IPS) - Authentication, Authorization, and Accounting (AAA) - Access control mechanisms - Encryption and PKI |
| Network Perimeter Protection | 10% | - Network segmentation and isolation - Firewall deployment and configuration - DMZ, VPN, and secure gateway implementation - Perimeter security architecture |
| Virtual, Cloud, and Wireless Network Protection | 15% | - Virtualization and container security - Wireless network security protocols and hardening - Cloud security models (IaaS, PaaS, SaaS) - Software-defined networking security |
| Security Policies, Standards, and Compliance | 6% | - Design and implementation of security policies - Industry standards, laws, and regulations - Compliance requirements and audits |
| Endpoint Protection | 20% | - Endpoint security controls and software - Endpoint detection and response - Operating system hardening (Windows, Linux) - Mobile and IoT device security |
| Computer Network and Defense Fundamentals | 5% | - OSI and TCP/IP models - Network types, topologies, and components - Network defense concepts and processes - IP addressing and protocols |
| Application and Data Protection | 10% | - Database security and protection - Secure application development and deployment - Data security, encryption, and integrity - Web and cloud application security |
| Network Threats, Attacks, and Vulnerabilities | 12% | - Types of threats and attack vectors - Attack methodologies and defense strategies - Vulnerability assessment and classification |
| Incident Detection, Response, and Recovery | 14% | - Network traffic monitoring and analysis - Log management and correlation - Incident handling and response procedures - Business continuity and disaster recovery |
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NEW QUESTION # 234
A network defender discovers that during a recent misconfiguration, sensitive financial records were accessed and altered by an internal user who should not have had editing permissions.
Although no data was deleted or leaked outside the network, the unauthorized changes went unnoticed for several days due to the absence of file integrity monitoring. Which information assurance concept was violated in this situation?
Answer: B
Explanation:
Integrity ensures that data remains accurate, consistent, and unaltered except by authorized individuals. In this scenario, sensitive financial records were modified by an internal user who did not have proper editing permissions. Because the data was altered without authorization and the changes went undetected for several days, the integrity of the information was compromised.
NEW QUESTION # 235
Which of the following OSI layers defines the electrical and physical specifications for devices?
Answer: A
NEW QUESTION # 236
Which of the following are the common security problems involved in communications and email? Each correct answer represents a complete solution. Choose all that apply.
Answer: A,B,C,D,E,G
Explanation:
Following are the common security problems involved in communications and email:
Eavesdropping: It is the act of secretly listening to private information through telephone lines, e-mail, instant messaging, and any other method of communication considered private.
Identity theft: It is the act of obtaining someone's username and password to access his/her email servers for reading email and sending false email messages. These credentials can be obtained by eavesdropping on SMTP, POP, IMAP, or Webmail connections.
Message modification: The person who has system administrator permission on any of the SMTP servers can visit anyone's message and can delete or change the message before it continues on to its destination. The recipient has no way of telling that the email message has been altered.
False message: It the act of constructing messages that appear to be sent by someone else.
Message replay: In a message replay, messages are modified, saved, and re-sent later.
Message repudiation: In message repudiation, normal email messages can be forged. There is no way for the receiver to prove that someone had sent him/her a particular message. This means that even if someone has sent a message, he/she can successfully deny it.
Answer option D is incorrect. A message digest is a number that is created algorithmically from a file and represents that file uniquely.
NEW QUESTION # 237
Which of the following tools is an open source network intrusion prevention and detection system that operates as a network sniffer and logs activities of the network that is matched with the predefined signatures?
Answer: D
Explanation:
Snort is an open source network intrusion prevention and detection system that operates as a network sniffer.
It logs activities of the network that is matched with the predefined signatures. Signatures can be designed for a wide range of traffic, including Internet Protocol (IP), Transmission Control Protocol (TCP), User Datagram Protocol (UDP), and Internet Control Message Protocol (ICMP). The three main modes in which Snort can be configured are as follows:
Sniffer mode: It reads the packets of the network and displays them in a continuous stream on the console.
Packet logger mode: It logs the packets to the disk.
Network intrusion detection mode: It is the most complex and configurable configuration, allowing Snort to analyze network traffic for matches against a user-defined rule set.
Answer option A is incorrect. Dsniff is a set of tools that are used for sniffing passwords, e-mail, and HTTP traffic. Some of the tools of Dsniff include dsniff, arpredirect, macof, tcpkill, tcpnice, filesnarf, and mailsnarf.
Dsniff is highly effective for sniffing both switched and shared networks. It uses the arpredirect and macof tools for switching across switched networks. It can also be used to capture authentication information for FTP, telnet, SMTP, HTTP, POP, NNTP, IMAP, etc.
Answer option D is incorrect. Kismet is a Linux-based 802.11 wireless network sniffer and intrusion detection system. It can work with any wireless card that supports raw monitoring (rfmon) mode. Kismet can sniff
802.11b, 802.11a, 802.11g, and 802.11n traffic. Kismet can be used for the following tasks:
To identify networks by passively collecting packets
To detect standard named networks
To detect masked networks
To collect the presence of non-beaconing networks via data traffic
Answer option B is incorrect. KisMAC is a wireless network discovery tool for Mac OS X. It has a wide range of features, similar to those of Kismet, its Linux/BSD namesake and far exceeding those of NetStumbler, its closest equivalent on Windows. The program is geared towards the network security professionals, and is not as novice-friendly as the similar applications. KisMAC will scan for networks passively on supported cards, including Apple's AirPort, AirPort Extreme, and many third-party cards. It will scan for networks actively on any card supported by Mac OS X itself.
Cracking of WEP and WPA keys, both by brute force, and exploiting flaws, such as weak scheduling and badly generated keys is supported when a card capable of monitor mode is used, and when packet reinsertion can be done with a supported card. The GPS mapping can be performed when an NMEA compatible GPS receiver is attached. Data can also be saved in pcap format and loaded into programs, such as Wireshark.
NEW QUESTION # 238
Which of the following devices helps in connecting a PC to an ISP via a PSTN?
Answer: A
NEW QUESTION # 239
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