Which router R1 configuration sequence generates an RSA key pair for SSH management access?

To generate an RSA key pair for SSH, you must first define a domain name using ip domain-name. Then, the command crypto key generate rsa is used, followed by modulus and the desired key size. The modulus 1024 specifies a 1024-bit RSA key, which is a common and acceptable size for many SSH implementations. The incorrect options use ec instead of rsa, which generates an Elliptic Curve Cryptography (ECC) key, not an RSA key. While ECC is also used for SSH, the question specifically asks for an RSA key pair. Another incorrect option uses crypto key encrypt rsa name myKey, which is not the correct command for generating a key pair; it's syntactically incorrect for this purpose.