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Q471. An administrator needs to secure RADIUS traffic between two servers. Which of the following is the BEST solution?
A. Require IPSec with AH between the servers
B. Require the message-authenticator attribute for each message
C. Use MSCHAPv2 with MPPE instead of PAP
D. Require a long and complex shared secret for the servers
Answer: A
Explanation:
Q472. Which of the following is a notification that an unusual condition exists and should be investigated?
A. Alert
B. Trend
C. Alarm
D. Trap
Answer: A
Explanation:
We need to look carefully at the wording of the question to determine the answer. This question is asking about an “unusual condition” that should be investigated. There are different levels of alerts from Critical to Warning to Information only. An Alarm would be triggered by a serious definite problem that needs resolving urgently. An “unusual condition” probably wouldn’t trigger an alarm; it is more likely to trigger an Alert.
Q473. The server administrator has noticed that most servers have a lot of free disk space and low memory utilization. Which of the following statements will be correct if the server administrator migrates to a virtual server environment?
A. The administrator will need to deploy load balancing and clustering.
B. The administrator may spend more on licensing but less on hardware and equipment.
C. The administrator will not be able to add a test virtual environment in the data center.
D. Servers will encounter latency and lowered throughput issues.
Answer: B
Explanation:
Q474. An administrator was asked to review user accounts. Which of the following has the potential to cause the MOST amount of damage if the account was compromised?
A. A password that has not changed in 180 days
B. A single account shared by multiple users
C. A user account with administrative rights
D. An account that has not been logged into since creation
Answer: C
Explanation:
Q475. Which of the following data security techniques will allow Matt, an IT security technician, to encrypt a system with speed as its primary consideration?
A. Hard drive encryption
B. Infrastructure as a service
C. Software based encryption
D. Data loss prevention
Answer: A
Explanation:
Disk and device encryption encrypts the data on the device. This feature ensures that the data on the device cannot be accessed in a useable form should the device be stolen. It should be implemented using a hardware-based solution for greater speed.
Far out SY0-401 test preparation:
Q476. A large corporation has data centers geographically distributed across multiple continents. The company needs to securely transfer large amounts of data between the data center. The data transfer can be accomplished physically or electronically, but must prevent eavesdropping while the data is on transit. Which of the following represents the BEST cryptographic solution?
A. Driving a van full of Micro SD cards from data center to data center to transfer data
B. Exchanging VPN keys between each data center via an SSL connection and transferring the data in the VPN
C. Using a courier to deliver symmetric VPN keys to each data center and transferring data in the VPN
D. Using PKI to encrypt each file and transferring them via an Internet based FTP or cloud server
Answer: B
Explanation:
A virtual private network (VPN) is an encrypted communication tunnel that connects two systems over an untrusted network, such as the Internet. They provide security for both authentication and data transmission through a process called encapsulation. Secure Sockets Layer (SSL) can be used to exchange the VPN keys securely. SSL is used to establish secure TCP communication between two machines by encrypting the communication.
Q477. Which of the following ports should be used by a system administrator to securely manage a remote server?
A. 22
B. 69
C. 137
D. 445
Answer: A
Explanation:
Secure Shell (SSH) is a more secure replacement for Telnet, rlogon, rsh, and rcp. SSH can be called a remote access or remote terminal solution. SSH offers a means by which a command-line, text-only interface connection with a server, router, switch, or similar device can be established over any distance. SSH makes use of TCP port 22.
Q478. At an organization, unauthorized users have been accessing network resources via unused network wall jacks. Which of the following would be used to stop unauthorized access?
A. Configure an access list.
B. Configure spanning tree protocol.
C. Configure port security.
D. Configure loop protection.
Answer: C
Explanation:
Port security in IT can mean several things. It can mean the physical control of all connection points, such as RJ-45 wall jacks or device ports, so that no unauthorized users or unauthorized devices can attempt to connect into an open port. This can be accomplished by locking down the wiring closet and server vaults and then disconnecting the workstation run from the patch panel (or punch-down block) that leads to a room’s wall jack. Any unneeded or unused wall jacks can (and should) be physically disabled in this manner. Another option is to use a smart patch panel that can monitor the MAC address of any device connected to each and every wall port across a building and detect not just when a new device is connected to an empty port, but also when a valid device is disconnected or replaced by an invalid device.
Q479. A company has several conference rooms with wired network jacks that are used by both employees and guests. Employees need access to internal resources and guests only need access to the Internet. Which of the following combinations is BEST to meet the requirements?
A. NAT and DMZ
B. VPN and IPSec
C. Switches and a firewall
D. 802.1x and VLANs
Answer: D
Explanation:
802.1x is a port-based authentication mechanism. It’s based on Extensible Authentication Protocol (EAP) and is commonly used in closed-environment wireless networks. 802.1x was initially used to compensate for the weaknesses of Wired Equivalent Privacy (WEP), but today it’s often used as a component in more complex authentication and connection-management systems, including Remote Authentication Dial-In User Service (RADIUS), Diameter, Cisco System’s Terminal Access Controller Access-Control System Plus (TACACS+), and Network Access Control (NAC).
A virtual local area network (VLAN) is a hardware-imposed network segmentation created by switches. By default, all ports on a switch are part of VLAN 1. But as the switch administrator changes the VLAN assignment on a port-by-port basis, various ports can be grouped together and be distinct from other VLAN port designations. VLANs are used for traffic management. Communications between ports within the same VLAN occur without hindrance, but communications between VLANs require a routing function.
Q480. A computer is put into a restricted VLAN until the computer’s virus definitions are up-to-date.
Which of the following BEST describes this system type?
A. NAT
B. NIPS
C. NAC
D. DMZ
Answer: C
Explanation:
Network Access Control (NAC) means controlling access to an environment through strict adherence to and implementation of security policies. The goals of NAC are to prevent/reduce zero-day attacks, enforce security policy throughout the network, and use identities to perform access control.
