CompTIA SY0-501 Security+ Take Ten Challenge #8Step 1 of 1010%8-1: A web site owner would like to provide a method for users to verify downloaded files. Which of the following would be the BEST choice for this requirement? AES ECB Diffie-Hellman Blowfish MD5 8-2: An encrypted document was downloaded by an attacker, and four hours later the decrypted version of the document was posted online. Which of the following would be the MOST likely reason for this security issue? End-of-life vulnerability Invalid digital signature Weak cipher Untrained users Race condition 8-3: A security administrator would like to maintain a centralized record of events from all switches, routers, and servers. Which of the following would provide this information? Firewall Data loss prevention SIEM Network access control Proxy 8-4: A large enterprise needs a secure method of backing up and maintaining web server encryption keys. Which of the following would BEST fit this requirement? MDM UTM HSM TPM GCM 8-5: During login, a user is required to enter a username, password, and group of numbers from a phone app. Every thirty seconds, the numbers change to a different random group of values. Which of the following would BEST describe this authentication factor? Hash Code signing BYOD Something you do TOTP 8-6: Which of the following would be the LEAST volatile? Application executable file CPU register File in the /temp folder Network topology ARP table 8-7: Which of the following certificate formats would be the BEST choice to send as an email message? MD5 DER PEM RSA PKCS #12 8-8: Which of the following would BEST describe malware that resides on a user's computer and proxies all incoming and outgoing traffic? DoS Phishing Spoofing Man-in-the-browser Replay attack 8-9: A security administrator would like to create a graphical map of the local workstations and servers. Which of the following tools would be the BEST choice for this task? Vulnerability scanner Data sanitization tool Exploitation framework Network scanner Steganography utility 8-10: A computer in a data center has been labeled as EAL4. Which of the following would BEST describe this system? This computer is running the fourth version of the system image The computer is only accessible during certain times of the day This computer receives patches every four days The computer is not connected to the Internet The operating system meets a specific security baseline