ImplementationCâu 47 / 100
Which entity in a PKI issues and signs digital certificates?
a.Certificate authority
b.Registration authority
c.Key escrow agent
d.Certificate holder
Giải thích
A certificate authority (CA) issues, signs, and vouches for digital certificates, binding a public key to an identity. Trust in the CA underpins the entire PKI. A compromised CA can undermine trust for all certificates it issued.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Which cryptographic method uses a public and private key pair?
- Which one-way function produces a fixed-length value that cannot be reversed to the original input?
- Adding a unique random value to each password before hashing to defeat precomputed attacks is called:
- Which mechanism lets a client quickly check whether a single certificate has been revoked?
- What does a digital signature primarily provide?
- Which authentication factor category does a fingerprint belong to?
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với CompTIA Security+ (SY0-701) · Quy trình kiểm tra