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[General] CISA Practice Exam Fee, CISA Certification Dumps

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【General】 CISA Practice Exam Fee, CISA Certification Dumps

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ISACA Certified Information Systems Auditor Sample Questions (Q118-Q123):NEW QUESTION # 118
Which of the following is the BEST control to prevent the transfer of files to external parties through instant messaging (IM) applications?
  • A. Application-level firewalls
  • B. Instant messaging policy
  • C. File level encryption
  • D. File Transfer Protocol (FTP)
Answer: A
Explanation:
Application level firewalls are the best control to prevent the transfer of files to external parties through instant messaging (IM) applications, because they can inspect and filter network traffic based on application-specific protocols and commands, such as IM file transfer commands. Application level firewalls can block or allow IM file transfers based on predefined rules or policies. File level encryption, file transfer protocol (FTP), and instant messaging policy are not effective controls to prevent IM file transfers, because they do not restrict or monitor IM network traffic. References: CISA Review Manual (Digital Version), Chapter 5, Section 5.4.1

NEW QUESTION # 119
In a client-server architecture, a domain name service (DNS) is MOST important because it provides the:
  • A. domain name system.
  • B. resolution service for the name/address.
  • C. address of the domain server.
  • D. IP addresses for the internet.
Answer: B
Explanation:
Section: Protection of Information Assets
Explanation:
DNS is utilized primarily on the Internet for resolution of the name/address of the web site. It is an Internet
service that translates domain names into IP addresses. As names are alphabetic, they are easier to
remember. However, the Internet is based on IP addresses. Every time a domain name is used, a DNS
service must translate the name into the corresponding IP address. The DNS system has its own network,
if one DNS server does not know how to translate a particular domain name, it asks another one, and so
on, until the correct IP address is returned.

NEW QUESTION # 120
When multiple applications are hosted on the same virtualized server, the procedures to restore the server should be based on which of the following?
  • A. The mean recovery time of all applications
  • B. The critical application with the shortest recovery time objective (RTO)
  • C. The critical application with the longest recovery point objective (RPO)
  • D. The application with the most frequent backups
Answer: B

NEW QUESTION # 121
An IS auditor found that a company executive is encouraging employee use of social networking sites for business purposes. Which of the following recommendations would BEST help to reduce the risk of data leakage?
  • A. Establishing strong access controls on confidential data
  • B. Providing education and guidelines to employees on use of social networking sites
  • C. Requiring policy acknowledgment and nondisclosure agreements (NDAs) signed by employees
  • D. Monitoring employees' social networking usage
Answer: B
Explanation:
The best recommendation to reduce the risk of data leakage from employee use of social networking sites for business purposes is to provide education and guidelines to employees on use of social networking sites.
Education and guidelines can help employees understand the benefits and risks of using social media for business purposes, such as enhancing brand awareness, engaging with customers, or sharing industry insights.
They can also inform employees about the dos and don'ts of social media etiquette, such as respecting privacy, protecting intellectual property, avoiding conflicts of interest, or complying with legal obligations. Education and guidelines can also raise awareness of potential data leakage scenarios, such as phishing attacks, malicious links, fake profiles, or oversharing sensitive information, and provide tips on how to prevent or respond to them.

NEW QUESTION # 122
Which of the following is the INCORRECT Layer to Protocol mapping used in the DOD TCP/IP model?
  • A. Transport layer - ICMP
  • B. Application layer - Telnet
  • C. Internet layer - IP
  • D. Network Access layer - Ethernet
Answer: A
Explanation:
Section: Information System Operations, Maintenance and Support
Explanation:
The keyword INCORRECT is used within the question. You need to find out the incorrect Layer to Protocol mapping.
The ICMP protocol works at Internet layer of the DoD TCP/IP model, not at the Transport Layer.
For your exam you should know below information about the TCP/IP models:
Network Models

Layer 4. Application Layer
Application layer is the top most layer of four layer TCP/IP model. Application layer is present on the top of the Transport layer. Application layer defines TCP/IP application protocols and how host programs interface with Transport layer services to use the network.
Application layer includes all the higher-level protocols like DNS (Domain Naming System), HTTP (Hypertext Transfer Protocol), Telnet, SSH, FTP (File Transfer Protocol), TFTP (Trivial File Transfer Protocol), SNMP (Simple Network Management Protocol), SMTP (Simple Mail Transfer Protocol) , DHCP (Dynamic Host Configuration Protocol), X Windows, RDP (Remote Desktop Protocol) etc.
Layer 3. Transport Layer
Transport Layer is the third layer of the four layer TCP/IP model. The position of the Transport layer is between Application layer and Internet layer. The purpose of Transport layer is to permit devices on the source and destination hosts to carry on a conversation. Transport layer defines the level of service and status of the connection used when transporting data.
The main protocols included at Transport layer are TCP (Transmission Control Protocol) and UDP (User Datagram Protocol).
Layer 2. Internet Layer
Internet Layer is the second layer of the four layer TCP/IP model. The position of Internet layer is between Network Access Layer and Transport layer. Internet layer pack data into data packets known as IP datagram's, which contain source and destination address (logical address or IP address) information that is used to forward the datagram's between hosts and across networks. The Internet layer is also responsible for routing of IP datagram's.
Packet switching network depends upon a connectionless internetwork layer. This layer is known as Internet layer. Its job is to allow hosts to insert packets into any network and have them to deliver independently to the destination. At the destination side data packets may appear in a different order than they were sent. It is the job of the higher layers to rearrange them in order to deliver them to proper network applications operating at the Application layer.
The main protocols included at Internet layer are IP (Internet Protocol), ICMP (Internet Control Message Protocol), ARP (Address Resolution Protocol), RARP (Reverse Address Resolution Protocol) and IGMP (Internet Group Management Protocol).
Layer 1. Network Access Layer
Network Access Layer is the first layer of the four layer TCP/IP model. Network Access Layer defines details of how data is physically sent through the network, including how bits are electrically or optically signaled by hardware devices that interface directly with a network medium, such as coaxial cable, optical fiber, or twisted pair copper wire.
The protocols included in Network Access Layer are Ethernet, Token Ring, FDDI, X.25, Frame Relay etc.
The most popular LAN architecture among those listed above is Ethernet. Ethernet uses an Access Method called CSMA/CD (Carrier Sense Multiple Access/Collision Detection) to access the media, when Ethernet operates in a shared media. An Access Method determines how a host will place data on the medium.
IN CSMA/CD Access Method, every host has equal access to the medium and can place data on the wire when the wire is free from network traffic. When a host wants to place data on the wire, it will check the wire to find whether another host is already using the medium. If there is traffic already in the medium, the host will wait and if there is no traffic, it will place the data in the medium. But, if two systems place data on the medium at the same instance, they will collide with each other, destroying the data. If the data is destroyed during transmission, the data will need to be retransmitted. After collision, each host will wait for a small interval of time and again the data will be retransmitted.
Protocol Data Unit (PDU):

The following answers are incorrect:
The other options correctly describe the Layer to Protocol mapping of the DoD TCP/IP model protocols.
Reference:
CISA review manual 2014 page number 272

NEW QUESTION # 123
......
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