IT SecurityCâu 77 / 100
What is a 'zero-day' vulnerability?
a.A security flaw unknown to the vendor and unpatched at the time it is exploited
b.A vulnerability that has existed for zero days
c.A password that expires daily
d.A firewall that blocks all traffic
Giải thích
A zero-day vulnerability is a security flaw that is unknown to the software vendor and has no available patch when attackers begin exploiting it. These are especially dangerous because defenders have had no time to fix them. Rapid patching and layered defenses help mitigate the risk.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- What is the purpose of network hardening?
- What does 'ransomware' do?
- Why should Wi-Fi networks use WPA2 or WPA3 encryption instead of WEP?
- What is the role of a digital certificate in security?
- What is 'two-factor authentication' an example of?
- What is the best response when a user receives a suspicious email asking them to urgently click a link and enter their password?
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với Google IT Support Professional Certificate · Quy trình kiểm tra