Explanation The command "crypto isakmp identity address 172.19.20.24" is not valid. We can only use "crypto isakmp identity {address | hostname}. The following example uses preshared keys at two peers and sets both their ISAKMP identities to the IP address. At the local peer (at 10.0.0.1) the ISAKMP identity is set and the preshared key is specified: crypto isakmp identity address crypto isakmp key sharedkeystring address 192.168.1.33 At the remote peer (at 192.168.1.33) the ISAKMP identity is set and the same preshared key is specified: crypto isakmp identity address crypto isakmp key sharedkeystring address 10.0.0.1 Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/security/a1/sec-a1-cr-book/sec-crc4.html#wp3880782430 The command "crypto enrollment peer address" is not valid either. The command "crypto ca identity ..." is only used to declare a trusted CA for the router and puts you in the caidentity configuration mode. Also it should be followed by a name, not an IP address. For example: "crypto ca identity CA-Server" -> Answer A is not correct. Only answer B is the best choice left.
The command "crypto isakmp identity address 172.19.20.24" is not valid. We can only use "crypto isakmp identity {address | hostname}. The following example uses preshared keys at two peers and sets both their ISAKMP identities to the IP address.
At the local peer (at 10.0.0.1) the ISAKMP identity is set and the preshared key is specified:
crypto isakmp identity address
crypto isakmp key sharedkeystring address 192.168.1.33
At the remote peer (at 192.168.1.33) the ISAKMP identity is set and the same preshared key is specified:
crypto isakmp identity address
crypto isakmp key sharedkeystring address 10.0.0.1
Reference:
The command "crypto enrollment peer address" is not valid either.
The command "crypto ca identity ..." is only used to declare a trusted CA for the router and puts you in the caidentity configuration mode. Also it should be followed by a name, not an IP address. For example: "crypto ca identity CA-Server" -> Answer A is not correct.
Explanation The command "crypto isakmp identity address 172.19.20.24" is not valid. We can only use "crypto isakmp identity {address | hostname}. The following example uses preshared keys at two peers and sets both their ISAKMP identities to the IP address. At the local peer (at 10.0.0.1) the ISAKMP identity is set and the preshared key is specified: crypto isakmp identity address crypto isakmp key sharedkeystring address 192.168.1.33 At the remote peer (at 192.168.1.33) the ISAKMP identity is set and the same preshared key is specified: crypto isakmp identity address crypto isakmp key sharedkeystring address 10.0.0.1 Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/security/a1/sec-a1-cr-book/sec-crc4.html#wp3880782430 The command "crypto enrollment peer address" is not valid either. The command "crypto ca identity ..." is only used to declare a trusted CA for the router and puts you in the caidentity configuration mode. Also it should be followed by a name, not an IP address. For example: "crypto ca identity CA-Server" -> Answer A is not correct. Only answer B is the best choice left.

File discovery is a feature of Cisco AMP that allows the engineering team to search for files across all endpoints in the network based on their SHA-256 hashes. File discovery can help identify whether a file is installed on a selected few workstations, and also provide information such as file name, path, size, date, and disposition. File discovery can be used to locate malicious files, unauthorized software, or sensitive data on the endpoints. File discovery can be accessed from the Outbreak Control menu in the AMP console1. References: https://www.cisco.com/c/en/us/support/docs/security/amp-endpoints/215176-configure-a-s

Explanation/Reference: https://www.cisco.com/c/en/us/products/collateral/routers/asr-1000-series-aggregation-services- routers/data_sheet_c78-704277.html