question

Which of the following is the main difference between a DOS attack and a DDoS attack?

answer

The DDoS attack uses zombie computers.

question

Which of the following are denial of service attacks? (Select two.)

answer

Fraggle Smurf

question

Which attack form either exploits a software flaw or floods a system with traffic in order to prevent legitimate activities or transactions from occurring?

answer

Denial of service attack

question

As the victim of a Smurf attack, what protection measure is the most effective during the attack?

answer

Communicate with your upstream provider

question

You suspect that an Xmas tree attack is occurring on a system. Which of the following could result if you do not stop the attack? (Select two.)

answer

The system will be unavailable to respond to legitimate requests. The threat agent will obtain information about open ports on the system.

question

You need to enumerate the devices on your network and display the network's configuration details. Which of the following utilities should you use?

answer

nmap

question

An attacker is conducting passive reconnaissance on a targeted company. Which of the following could he be doing?

answer

Browsing the organization's website

question

Which type of active scan turns off all flags in a TCP header?

answer

Null

question

Which of the following denial of service (DOS) attacks uses ICMP packets and is only successful if the victim has less bandwidth than the attacker?

answer

Ping flood

question

In which of the following denial of service (DoS) attacks does the victim's system rebuild invalid UDP packets, causing the system to crash or reboot?

answer

Teardrop

question

A SYN packet is received by a server. The SYN packet has the exact same address for both the sender and receiver addresses, which is the address of the server. This is an example of what type of attack?

answer

Land attack

question

Which of the following is a form of denial of service attack that uses spoofed ICMP packets to flood a victim with echo requests using a bounce/amplification network?

answer

Smurf

question

A SYN attack or SYN flood exploits or alters which element of the TCP three-way handshake?

answer

ACK

question

When a SYN flood is altered so that the SYN packets are spoofed in order to define the source and destination address as a single victim IP address, the attack is now called what?

answer

Land attack

question

Which of the following best describes the ping of death?

answer

An ICMP packet that is larger than 65,536 bytes

question

Which of the following is the best countermeasure against man-in-the-middle attacks?

answer

IPsec

question

What is modified in the most common form of spoofing on a typical IP packet?

answer

Source address

question

Which type of activity changes or falsifies information in order to mislead or re-direct traffic?

answer

Spoofing

question

Which of the following describes a man-in-the-middle attack?

answer

A false server intercepts communications from a client by impersonating the intended server.

question

Capturing packets as they travel from one host to another with the intent of altering the contents of the packets is a form of which attack type?

answer

Man-in-the-middle attack

question

When the TCP/IP session state is manipulated so that a third party is able to insert alternate packets into the communication stream, what type of attack has occurred?

answer

Hijacking

question

What is the goal of a TCP/IP hijacking attack?

answer

Executing commands or accessing resources on a system the attacker does not otherwise have authorization to access.

question

Which of the following is not a protection against session hijacking?

answer

DHCP reservations

question

Which of the following is the most effective protection against IP packet spoofing on a private network?

answer

Ingress and egress filters

question

While using the internet, you type the URL of one of your favorite sites in the browser. Instead of going to the correct site, however, the browser displays a completely different website. When you use the IP address of the web server, the correct site is displayed. Which type of attack has likely occurred?

answer

DNS poisoning

question

Which of the following attacks tries to associate an incorrect MAC address with a known IP address?

answer

ARP poisoning

question

What are the most common network traffic packets captured and used in a replay attack?

answer

Authentication

question

When a malicious user captures authentication traffic and replays it against the network later, what is the security problem you are most concerned about?

answer

An unauthorized user gaining access to sensitive resources

question

A router on the border of your network detects a packet with a source address that is from an internal client, but the packet was received on the internet-facing interface. This is an example of what form of attack?

answer

Spoofing

question

An attacker uses an exploit to push a modified hosts file to client systems. This hosts file redirects traffic from legitimate tax preparation sites to malicious sites to gather personal and financial information. What kind of exploit has been used in this scenario? (Choose two. Both responses are different names for the same exploit.)

answer

Pharming DNS poisoning

question

Which of the following is a privately controlled portion of a network that is accessible to some specific external entities?

answer

Extranet

question

You are the office manager of a small financial credit business. Your company handles personal financial information for clients seeking small loans over the internet. You are aware of your obligation to secure clients records. Budget is an issue for your company. Which item would provide the best security for this situation?

answer

All-in-one security appliance

question

You are implementing security at a local high school that is concerned with students accessing inappropriate material on the internet from the library's computers. The students Will use the computers to search the internet for research paper content. The school budget is limited. Which content filtering option would you choose?

answer

Restrict content based on content categories

question

Match the application-aware network device on the right with the appropriate description on the left. Each description may be used once, more than once, or not at all.

answer

Application-aware proxy: - Improves application performance Application-aware firewall: - Enforces security rules based on the application that is generating network traffic instead of the traditional port and protocol Application-aware IDS: - Analyzes network packets to detect malicious payloads targeted at application-layer services

question

Members of the sales team use laptops to connect to the company network. While traveling, they connect their laptops to the internet through airport and hotel networks. You are concerned that these computers will pick up viruses that could spread to your private network. You would like to implement a solution that prevents the laptops from connecting to your network unless anti-virus software and the latest operating system patches are installed. Which solution should you use?

answer

NAC

question

You have a company network that is connected to the internet. You want all users to have internet access, but you need to protect your private network and users. You also need to make a web server publicly available to internet users. Which solution should you use?

answer

Use firewalls to create a DMZ. Place the web server inside the DMZ and the private network behind the DMZ.

question

You have used firewalls to create a demilitarized zone. You have a web server that needs to be accessible to internet users. The web server must communicate with a database server for retrieving product, customer, and order information. How should you place devices on the network to best protect the servers? (Select two.)

answer

Put the database server on the private network. Put the web server inside the DMZ.

question

Of the following security zones, which one can serve as a buffer network between a private secured network and the untrusted internet?

answer

DMZ

question

Which of the following is likely to be located in a DMZ?

answer

FTP Server

question

In which of the following situations would you most likely implement a demilitarized zone (DMZ)?

answer

You want to protect a public web server from attack.

question

Which of the following terms describes a network device that is exposed to attacks and has been hardened against those attacks?

answer

Bastion or sacrificial host

question

Your company has a connection to the internet that allows users to access the internet. You also have a web server and an email server that you want to make available to internet users. You want to create a DMZ for these two servers. Which type of device should you use to create the DMZ?

answer

Network-based firewall

question

Which of the following is a firewall function?

answer

Packet filtering

question

You manage a small network at work. Users use workstations connected to your network No portable computers are allowed. As part of your security plan, you would like to implement scanning of e-mails for all users. You want to scan the e- mails and prevent any e-mails with malicious attachments from being received by users. Your solution should minimize administration, allowing you to centrally manage the scan settings. Which solution should you use?

answer

Network based firewall

question

Which of the following are characteristics of a circuit-level gateway? (Select two.)

answer

Stateful Filters based on sessions

question

Which of the following are characteristics of a packet filtering firewall? (Select two.)

answer

Stateless Filters IP address and port

question

You want to install a firewall that can reject packets that are not part of an active session. Which type of firewall should you use?

answer

Circuit-level

question

You provide internet access for a local school. You want to control Internet access based on user, and prevent access to specific URLs. Which type of firewall should you install?

answer

Application level

question

Which of the following is the best device to deploy to protect your private network from a public untrusted network?

answer

Firewall

question

You have been given laptop to use for work. You connect the laptop to your company network, use it from home, and use it while traveling. You want to protect the laptop from Internet-based attacks. Which solution should you use?

answer

Host based firewall

question

Which of the following are true of a circuit proxy filter firewall? (Select two.)

answer

Verifies sequencing of session packets. Operates at the Session layer.

question

You would like to control Internet access based on users, time of day, and websites visited. How can you do this?

answer

Install a proxy server. Allow Internet access only through the proxy server.

question

Which of the following does a router acting as a firewall use to control which packets are forwarded or dropped?

answer

ACL

question

Which of the following describes how access lists can be used to improve network security?

answer

An access list filters traffic based on the IP header information such as source or destination IP address, protocol, or socket numbers.

question

When designing a firewall, what is the recommended approach for opening and closing ports?

answer

Close all ports; open only ports required by applications inside the DMZ.

question

Which of the following firewall types can be a proxy between servers and clients? (Select two.)

answer

Application layer firewall Circuit proxy filtering firewall

question

You have a small network at home that is connected to the internet. On your home network, you have a server with the IP address of 192.168.55. lgg/16. You have a Single public address that IS shared by all hosts on your private network. You want to configure the sewer as a web server and allow internet hosts to contact the server to browse a personal website. What should use to allow access?

answer

Static NAT

question

You are the administrator for a small company that implements NAT to access the internet. However, you recently acquired five servers that must be accessible from outside your network. Your ISP has provided you With five additional registered IP addresses to support these new servers, but you don't want the public to access these servers directly. You want to place these servers behind your firewall on the Inside network, yet still allow them to be accessible to the public from the outside. Which method of NAT translation should you implement for these servers?

answer

Static

question

You want to connect your small company network to the internet. Your ISP provides with a single IP address that is to be shared between all hosts on your private network. You do not want external hosts to be able to initiate connection to internal hosts. What type of address translation (NAT) should you implement?

answer

Dynamic

question

Which of the following is not one of the IP address ranges defined in RFC 1918 that are commonly used behind a NAT server?

answer

169.254.0.0 - 169.254.255.255

question

Which of the following networking devices or services prevents the use of IPSec in most cases?

answer

NAT

question

Which of the following is not a benefit of NAT?

answer

Improving the throughput rate of traffic

question

A group of salesmen would like to access your private network through the internet while they are traveling. You want to control access to the private network through a single server. Which solution should you implement?

answer

VPN concentrator

question

A VPN is primarily used for what purpose?

answer

Support secured communications over an untrusted network

question

Which VPN protocol typically employs IPSec as its data encryption mechanism?

answer

L2TP

question

Which statement best describes IPSec when used in tunnel mode?

answer

The entire data packet, including headers, is encapsulated

question

Which IPSec subprotocol provides data encryption?

answer

ESP

question

Which is the best countermeasure for someone attempting to view your network traffic?

answer

VPN

question

PPTP (Point-to-Point Tunneling Protocol) is quickly becoming obsolete because of which VPN protocol?

answer

L2TP (Layer 2 Tunneling Protocol)

question

What is the primary use of tunneling?

answer

Supporting private traffic through a public communication medium

question

In addition to Authentication Header (AH), IPSec is comprised of what other service?

answer

Encapsulating Security Payload (ESP)

question

A salesperson in your organization spends most of her time traveling between customer sites. After a customer visit, she must complete various managerial tasks, such as updating your organization's order database. Because she rarely comes back to your home office, she usually accesses the network from her notebook computer using Wi-Fi access provided by hotels, restaurants, and airports. Many of these locations provide unencrypted public Wi-Fi access, and you are concerned that sensitive data could be exposed. To remedy this situation, you decide to configure her notebook to use a VPN when accessing the home network over an open wireless connection. Which key steps should you take when implementing this configuration? (Select two.)

answer

Configure the browser to send HTTPS requests through the VPN connection Configure the VPN connection to use IPSec

question

Which of the following is a valid security measure to protect email from viruses?

answer

Use blockers on email gateways

question

Which of the following prevents access based on website ratings and classifications?

answer

Content Filter

question

Drag the web threat protection method on the left to the correct definition on the right.

answer

Prevents users from visiting malicious [Web threat filtering] Prevents outside attempts to access confidential information [Anti-phishing software] Identifies and disposes of infected content [Virus blockers] Prevents unwanted email from reaching your network [Gateway email spam blockers] Prevents users from visiting restricted websites [URL content filtering]

question

You are investigating the use of website and URL content filtering to prevent users from visiting certain websites. Which benefits are the result of implementing this technology in your organization? (Choose two.)

answer

An increase in bandwidth availability Enforcement of the organization's internet usage policy

question

Which of the following are functions of gateway email spam blockers? (Select two.)

answer

Filters messages containing specific content Blocks email from specific senders

question

You have a company network with a single switch. All devices connect to the network through the switch. You want to control which devices are able to connect to your rän.'ork. For devices that do not have the latest operating system patches, you want to prevent access to all network devices except for a special server that holds the patches that the computers need to download. Which of the following components will be part of your solution? (Select two.)

answer

Remediation servers 802.1x authentication

question

Which step is required to configure a NAP on a Remote Desktop (RD) gateway server?

answer

Edit the properties for the server and select *Request clients to send a statement of health*

question

In a NAP system, which is the function of the System Health Validator?

answer

Compare the statement of health submitted by the client to the health requirements

question

How does IPSec NAP enforcement differ from other NAP enforcement methods?

answer

Clients must be issued a valid certificate before a connection to the private network is allowed

question

Your organization's security policy requires you to restrict network access to allow only clients that have their firewall enabled. Which of the following is a collection of components that would allow you to meet this requirement?

answer

Network access protection

question

Which of the following specifications identify security that can be added to wireless networks? (Select two.)

answer

802.1x 802.11i

question

Which of the following wireless security methods uses a common shared key configured on the wireless access point and all wireless clients?

answer

WEP, WPA Personal, and WPA2 Personal

question

Which of the following offers the weakest form of encryption for an 802.11 wireless network?

answer

WEP

question

What encryption method is used by WPA for wireless networks?

answer

TKIP

question

Which of the following features are supplied by WPA2 on a wireless network?

answer

Encryption

question

You need to configure a wireless network. You want to use WPA2 Enterprise. Which of the following components will be part of your design? (Select two.)

answer

802.1x AES encryption

question

You need to configure the wireless network card to connect to your network at work. The connection should use a user name and password for authentication with AES encryption. What should you do?

answer

Configure the connection to use WPA2-Enterprise.

question

Match the wireless networking security standard on the left to its associated characteristics on the right. Each standard can be used more than once.

answer

Short initialization vector makes key vulnerable. [WEP] Uses AES for encryption. [WPA2] Uses RC4 for encryption. [WEP] Uses TKIP for encryption. [WPA] Uses CBC-MAC for data integrity. [WPA2] Uses CCMP for key rotation. [WPA2]

question

Which of the following are typically used for encrypting data on a wireless network? (Select two.)

answer

AES TKIP

question

You want to connect a laptop computer running Windows to a wireless network. The wireless network uses multiple access points and WPA2-Personal. You want to use the strongest authentication and encryption possible. SSID broadcast has been disabled. What should you do?

answer

Configure the connection with a pre-shared key and AES encryption.

question

Which of the following is used on a wireless network to identify the network name?

answer

SSID

question

Which of the following are true about Wi-Fi Protected Access 2 (WPA2)? (Select two.)

answer

WPA2 uses AES for encryption and CBC-MAC for data integrity. Upgrading from a network using WEP typically requires installing new hardware.

question

WiMAX is an implementation of which IEEE committee?

answer

802.16

question

You have a small wireless network that uses multiple access points. The network uses WPA and broadcasts the SSID. WPA2 is not supported by the wireless access points. You want to connect a laptop computer to the wireless network. Which of the following parameters will you need to configure on the laptop? (Select two.)

answer

Pre-shared key TKIP encryption

Security 5.3.8 5.4.5 5.5.5 5.6.5 5.7.8 5.8.5 5.9.4 – Flashcards

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