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2021 Mar SY0-401 answers

Q571. Which of the following security concepts identifies input variables which are then used to perform boundary testing? 

A. Application baseline 

B. Application hardening 

C. Secure coding 

D. Fuzzing 

Answer: D 

Explanation: 

Fuzzing is a software testing technique that involves providing invalid, unexpected, or random data to as inputs to a computer program. The program is then monitored for exceptions such as crashes, or failed validation, or memory leaks. 


Q572. Which of the following types of security services are used to support authentication for remote users and devices? 

A. Biometrics 

B. HSM 

C. RADIUS 

D. TACACS 

Answer: C 

Explanation: 

RADIUS authentication phase takes place when a network client connects to a network access server (NAS) and provides authentication credentials. The NAS will then make use of the authentication credentials to issue a RADIUS authentication request to the RADIUS server, which will then exchange RADIUS authentication messages with the NAS. 


Q573. Which of the following assets is MOST likely considered for DLP? 

A. Application server content 

B. USB mass storage devices 

C. Reverse proxy 

D. Print server 

Answer: B 

Explanation: 

Data loss prevention (DLP) systems monitor the contents of systems (workstations, servers, and networks) to make sure that key content is not deleted or removed. They also monitor who is using the data (looking for unauthorized access) and transmitting the data. A USB presents the most likely device to be used to steal data because of its physical size. 


Q574. Ann would like to forward some Personal Identifiable Information to her HR department by email, but she is worried about the confidentiality of the information. Which of the following will accomplish this task securely? 

A. Digital Signatures 

B. Hashing 

C. Secret Key 

D. Encryption 

Answer: D 

Explanation: 

Encryption is used to prevent unauthorized users from accessing data. Data encryption will support the confidentiality of the email. 


Q575. Which of the following provides the HIGHEST level of confidentiality on a wireless network? 

A. Disabling SSID broadcast 

B. MAC filtering 

C. WPA2 

D. Packet switching 

Answer: C 

Explanation: 

The Wi-Fi Protected Access (WPA) and Wi-Fi Protected Access 2 (WPA2) authentication protocols were designed to address the core, easy-to-crack problems of WEP. 


Renewal SY0-401 latest exam:

Q576. A server is configured to communicate on both VLAN 1 and VLAN 12. VLAN 1 communication works fine, but VLAN 12 does not. Which of the following MUST happen before the server can communicate on VLAN 12? 

A. The server's network switch port must be enabled for 802.11x on VLAN 12. 

B. The server's network switch port must use VLAN Q-in-Q for VLAN 12. 

C. The server's network switch port must be 802.1q untagged for VLAN 12. 

D. The server's network switch port must be 802.1q tagged for VLAN 12. 

Answer: D 

Explanation: 


Q577. An achievement in providing worldwide Internet security was the signing of certificates associated with which of the following protocols? 

A. TCP/IP 

B. SSL 

C. SCP 

D. SSH 

Answer: B 

Explanation: 

SSL (Secure Sockets Layer) is used for establishing an encrypted link between two computers, typically a web server and a browser. SSL is used to enable sensitive information such as login credentials and credit card numbers to be transmitted securely. 


Q578. Which of the following offers the LEAST secure encryption capabilities? 

A. TwoFish 

B. PAP 

C. NTLM 

D. CHAP 

Answer: B 

Explanation: 

PAP transmits unencrypted ASCII passwords over the network and is therefore considered insecure. It is used as a last resort when the remote server does not support a stronger authentication protocol, like CHAP or EAP. 


Q579. When a new network drop was installed, the cable was run across several fluorescent lights. The users of the new network drop experience intermittent connectivity. Which of the following environmental controls was MOST likely overlooked during installation? 

A. Humidity sensors 

B. EMI shielding 

C. Channel interference 

D. Cable kinking 

Answer: B 

Explanation: 

Shielding refers to the process of preventing electronic emissions from your computer systems from being used to gather intelligence and preventing outside electronic emissions from disrupting your information-processing abilities. In this case you are experiencing intermittent connectivity since Electro Magnetic Interference (EMI) was not taken into account when running the cables over fluorescent lighting. 


Q580. Pete, a security administrator, has observed repeated attempts to break into the network. Which of the following is designed to stop an intrusion on the network? 

A. NIPS 

B. HIDS 

C. HIPS 

D. NIDS 

Answer: A 

Explanation: 

Network-based intrusion prevention system (NIPS) monitors the entire network for suspicious traffic by analyzing protocol 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