“"The practice exams closely matched the certification objectives and helped me strengthen my web security knowledge before the exam."”
Michael Brown
Cybersecurity Analyst
The 1D0-671 exam is short by security-certification standards: 55 multiple-choice, single-response questions in 90 minutes, with a passing score of 69.09% — meaning you need at least 38 correct answers. There’s no simulation component and no performance-based items; everything is a straight multiple-choice question, which makes the exam more about breadth of recall than depth of hands-on skill.
That short format cuts both ways for candidates. On one hand, 90 minutes for 55 questions is generous pacing — most people finish with time to spare. On the other, because each question is worth close to 2% of your score, a handful of weak areas can sink you fast. There’s much less room to absorb a bad guess than on a 100+ question exam.
Expect a mix of straight recall (“what does a circuit-level gateway do?”) and short applied scenarios (“a company wants to protect internal hosts while still allowing outbound web traffic — which firewall type fits?”). The scenario questions tend to cluster around firewall design and incident response rather than encryption, which is tested more as definition-and-recognition.
CIW doesn’t publish percentage weightings for 1D0-671 the way some vendors do for their exams — there’s no official “Domain 1 is 20% of the exam” table. What CIW does publish is the objectives document itself, broken into six sub-domains. The objective count per domain is a reasonable proxy for how much exam real estate each area occupies, since CIW writes items against each listed objective.
Domain | Focus | Objectives Listed |
|---|---|---|
1.1 | Network security fundamentals, security policy, access control | 17 |
1.2 | Encryption methods (symmetric, asymmetric, hashing, PKI) | 14 |
1.3 | Applying security guidelines across TCP/IP services and assessments | 14 |
1.4 | Security principles and attack recognition (DoS, password attacks, PGP/IPSec) | 10 |
1.5 | Firewall types and terminology | 10 |
1.6 | Firewall system design, proactive detection, incident response | 9 |
Add 1.5 and 1.6 together and firewalls account for nearly a quarter of the objectives — unusually heavy for an associate-level exam. If you’re budgeting study time, firewall architecture (packet-filtering vs. circuit-level vs. application-level gateways, proxy caching, stateful inspection) deserves more hours than its single-domain label suggests.
Password attack and storage terminology beyond the basics. The objectives explicitly call out dictionary, brute-force, rainbow table, pass-the-hash, and birthday attacks — and on the defensive side, PBKDF2, bcrypt, salting, and key stretching. Candidates who studied “hashing vs. encryption” at a high level get tripped up when a question asks them to distinguish salting from key stretching, or to identify why rainbow tables don’t work against a properly salted hash.
The nine types of security assessments. This is a specific, named list in the objectives (1.3.10) that a lot of generic security study guides don’t cover in this exact framing. If your prep material talks loosely about “penetration testing and vulnerability scanning” without walking through CIW’s specific assessment taxonomy, you’ll feel underprepared for this slice of the exam.
Certificate authorities that issue free certificates. It’s a narrow, specific objective (1.2.14) that’s easy to skip if you’re studying encryption at a conceptual level rather than memorizing the CIW objective list line by line.
Virtualization and cloud security as a standalone topic. Objective 1.3.14 puts virtualization and cloud computing concepts inside what otherwise reads like a traditional, on-premises-focused security exam. Candidates who assume this is a legacy-network-only exam are sometimes caught off guard here.
Because 1D0-671 is pure recognition-based multiple choice with no performance labs, practice questions are a legitimately efficient way to prepare — more so than for exams with hands-on simulations, where practice questions can only approximate the real test experience.
The highest-value approach is working through practice questions domain by domain rather than in one long mixed set, at least on your first pass. Firewall terminology, password-attack types, and the nine assessment categories are the three areas most likely to contain distractors that sound plausible but are subtly wrong (e.g., confusing a circuit-level gateway’s function with an application-level gateway’s). Drilling those domains in isolation, with explanations, builds the discrimination skill you need before you mix everything together in a timed, full-length run.
Once you’re comfortable domain by domain, switch to full 55-question timed sets. With only 90 minutes and 55 questions, pacing isn’t usually the problem — confidence under exam conditions is. A couple of full timed runs scoring consistently above 75–80% is a reasonable signal you’re ready, since the margin above the 69.09% passing line gives you room for exam-day nerves and a few unfamiliar questions.
Treating encryption as one undifferentiated topic instead of separating symmetric, asymmetric, and hash encryption clearly enough to answer “which one” questions quickly.
Underestimating firewall-type questions because they sound like vocabulary rather than scenario application — then missing scenario questions that require picking the right firewall type for a described situation.
Skipping the security-policy and risk-management objectives (1.1) as “soft” material, when they make up the largest single sub-domain by objective count.
Not reviewing incident-response and security-alerting-organization objectives (1.6), which show up as straightforward recall questions that are easy points if studied and easy misses if not.
If you’re new to networking and security: Budget three to five weeks. Start with network security fundamentals and the CIA triad before touching encryption or firewalls — the later domains build on vocabulary established in 1.1 and 1.2. CIW’s own course estimate of 150 hours is aimed at a full classroom curriculum; most self-study candidates with no background move faster than that, but a few weeks of consistent study is realistic.
If you already have general IT or networking experience: One to two weeks is often enough. Your gap is usually CIW’s specific terminology and objective framing (the nine assessment types, the named password attacks) rather than the underlying concepts, so targeted review plus practice questions covers it.
If you’re retaking the exam: Don’t just redo the same practice set. Identify which domain you missed by (most retake candidates fail on either firewall-type discrimination or the more obscure 1.2/1.3 encryption and assessment objectives) and go back to the objectives document itself for that section before practicing again Improve your exam preparation with Splunk Core Certified User practice questions.
Last updated on Oct, 29 2026