Question 1

You have a 200 million VND budget to run a KOL/KOC campaign for a newly launched domestic cosmetics brand on TikTok and Instagram. How would you allocate the budget and select KOL/KOC to optimize reach and conversion rate?

Accepted Answer

1. Define objectives: Brand awareness vs. direct conversion
2. Tier KOL/KOC: Macro (1-2 people, ~60M VND) + Micro/Nano KOC (15-20 people, ~100M VND) + UGC seeding (40M VND)
3. Selection criteria: Engagement rate >3%, audience match (female 18-30), view/follower ratio on TikTok
4. Platform split: TikTok for viral + TikTok Shop links, Instagram Stories/Reels for brand aesthetic
5. Measurement: UTM tracking, unique discount codes per KOC, GMV tracking via TikTok Shop affiliate
6. Timeline: Seeding weeks 1-2, Macro launch week 3, Micro wave weeks 4-6 The recruiter wants to see the candidate understands the difference between KOL (celebrity, high reach, lower engagement) and KOC (real user, high trust, better conversion). In the Vietnamese market 2025-2026, KOCs on TikTok are outperforming traditional KOLs in ROI for the beauty sector. Strong candidates will mention TikTok Shop affiliate programs, how to track GMV per creator, and organic review seeding strategies before paid amplification. Bonus points for knowing tools like Klear, Minter.io, or TikTok Creator Marketplace for KOC vetting.

Question 2

You are running simultaneous Google Ads and Facebook Ads campaigns for a B2B SaaS product in Vietnam. After 3 months, Google Ads reports 500 leads at 400,000 VND CPL, while Facebook Ads reports 800 leads at 250,000 VND CPL. The client wants to cut the Google budget. How do you analyze this situation?

Accepted Answer

1. Question lead quality: What is the MQL→SQL→Close rate for each channel?
2. Analyze intent: Google Ads (high search intent - people actively seeking solutions) vs Facebook Ads (interruption marketing - awareness)
3. Check attribution model: Last-click is hiding Google's assist role in the customer journey
4. Review CRM data: Compare deal size, sales cycle length, and close rate per channel
5. Recommendation: Multi-touch attribution (linear or data-driven), keep Google for branded + competitor terms, optimize Facebook targeting
6. Conclusion: Lower CPL doesn't mean better ROI if lead quality differs This question tests analytical thinking beyond surface-level metrics. Strong candidates must recognize that CPL is not the final KPI in B2B - lead quality and revenue generated matter more. The recruiter wants to see candidates who can apply multi-touch attribution, understand the difference between pull (Google Search) and push (Facebook) channels, and have the confidence to make data-driven recommendations rather than immediately agreeing with the client. Bonus points for mentioning connecting Google Analytics 4 with a CRM (HubSpot, Salesforce) to track the full funnel.

Question 3

A small and medium enterprise (SME) selling furniture in Hanoi has a 30 million VND/month advertising budget. They ask whether to use Facebook Ads, Google Ads, or both. How do you advise them and why?

Accepted Answer

1. Ask follow-up: Direct sales (showroom) or online? Product price range? Do they have a website?
2. Channel analysis:
   - Google Search Ads: Capture existing demand (people searching 'buy sofa Hanoi'), higher cost but strong intent
   - Facebook/Instagram Ads: Create demand, remarketing, broader reach at lower cost, ideal for visual products
3. Recommended allocation (30M VND/month): Google Search 40% (12M) + Facebook/Instagram 50% (15M) + Remarketing 10% (3M)
4. Conditions: If no website yet, prioritize Facebook Lead Ads first
5. KPIs to track: ROAS, cost per store visit (Google), CPM/CPC (Facebook), conversion rate per channel
6. Monthly review and data-driven adjustment The recruiter is testing practical advisory skills, not theory. Good candidates will ask clarifying questions before proposing a solution (no generic advice). For furniture - a visual and high-consideration purchase - Facebook/Instagram is very suitable for inspiration and retargeting. However, Google Search is still needed to capture people with specific intent. Bonus points for mentioning Google Performance Max, Facebook Advantage+ Shopping, or integration with Messenger/Zalo for lead nurturing.

Question 4

What experience do you have with Zalo Official Account (ZOA)? Describe a strategy to build and leverage a ZOA to increase retention and upsell for a fintech app with 50,000 users in Vietnam.

Accepted Answer

1. Proper ZOA setup: Verified badge, professional cover, OA menu (6 function buttons)
2. Build follower base: Sync from user database, QR code in-app, follow incentives (reward points/gifts)
3. Segmentation: Group users by behavior (active, dormant, premium) for targeted messaging
4. Content strategy:
   - Broadcast messages: Product news, promotions (max 4 per day per Zalo policy)
   - Transaction notifications: OTP, transaction confirmations, security alerts
   - Personal messages: 1-1 customer care
5. Upsell flow: Trigger-based messages (user reaches free account limit → send premium offer)
6. Measurement: Open rate, click-through rate, ZOA message conversion, unsubscribe rate
7. Integration: ZOA API connected to CRM/CDP for automation Zalo is a Vietnam-specific channel that many candidates overlook or know only superficially. The recruiter wants to see that the candidate understands Zalo is not just for 'posting content' but is a CRM and retention channel stronger than email in Vietnam (ZOA open rate ~40-60% vs email ~15-20%). Bonus points for mentioning Zalo Mini App (can embed app into Zalo), Zalo Pay integration for fintech, and Zalo's broadcast frequency policy. Outstanding candidates will compare ZOA with push notifications and email to justify why ZOA is more suitable for the Vietnamese market.

Question 5

As a Digital Marketing Specialist, you are managing a TikTok Shop campaign for a Vietnamese fashion brand. After 2 weeks, GMV reaches 80 million VND but ROAS is only 2.1x, below the 3.5x target. How would you diagnose and optimize this?

Accepted Answer

Step 1 - Diagnosis:
- Check funnel: Impressions → Clicks → Product page views → Add to cart → Checkout → Purchase
- Identify the biggest drop-off point
- Analyze: Which products sell well/poorly? Which videos have the highest VTR?

Step 2 - Creative Optimization:
- First 3-second hook: Check CTR and VTR (Video Through Rate)
- A/B test formats: Product showcase vs. lifestyle vs. review
- Increase UGC frequency from micro KOCs for fresh content

Step 3 - Bidding & Targeting Optimization:
- Switch from CPM to OCPM (Optimized CPM) with Purchase objective
- Lookalike audience from existing purchasers
- Exclude non-converting audiences

Step 4 - Product & Offer Optimization:
- 2-hour flash sales to boost conversion rate
- Product bundles to increase AOV (Average Order Value)
- Check competitive pricing in the same TikTok Shop category

Step 5 - Daily tracking and iteration TikTok Shop is the fastest-growing e-commerce channel in Vietnam in 2025-2026, making this question highly practical. The recruiter wants to see candidates who not only know how to run ads but understand the entire TikTok Shop ecosystem: LIVE shopping, affiliate programs, and how the TikTok algorithm prioritizes content. Bonus points for mentioning TikTok Shop Ads Manager (different from regular TikTok Ads Manager), Product Showcase in videos, and how to collaborate with TikTok Shop affiliates (different from paid KOCs). Strong candidates will suggest LIVE commerce during prime time (8-10pm) as a quick ROAS lever.

Question 6

Explain how you conduct keyword research and optimize SEO for Vietnamese-language content. What are the key differences compared to English SEO that you need to be aware of?

Accepted Answer

1. Keyword research tools:
- Google Keyword Planner, Ahrefs/SEMrush (select VN geo, VI language)
- Google Suggest and People Also Ask in Vietnamese
- Check actual SERP on Google.com.vn

2. Vietnamese SEO specifics:
- Diacritics: Google distinguishes 'bảo hiểm' vs 'bao hiem' - ALWAYS use accented forms
- Tones: 6 tones create many homophones with different meanings, requires careful research
- Search intent: Vietnamese users frequently use 'là gì' (what is), 'có tốt không' (is it good), 'giá bao nhiêu' (how much) - target informational + commercial intent
- Mobile-first: 90%+ of searches in Vietnam are via mobile, page load speed is critical

3. On-page optimization:
- Title tag and H1 containing primary keyword with full diacritics
- Meta description 150-160 characters in natural Vietnamese
- Internal linking with meaningful anchor text
- Schema markup for Vietnamese content (Article, FAQ, HowTo)

4. Vietnamese SERP specifics:
- Google VN favors local content, major newspapers (VnExpress, Tuổi Trẻ, Dân Trí)
- Featured snippets very common for question-format queries
- YouTube videos frequently appear in SERP

5. Measurement: Google Search Console with VI language filter This technical question tests practical SEO knowledge in the Vietnamese context. Junior candidates need to master on-page basics, while mid-senior candidates must understand technical SEO and Vietnamese-language specifics. The most important differentiator is the diacritics issue - many Vietnamese SEO practitioners still make the mistake of targeting non-accented keywords. The recruiter values candidates with hands-on Google Search Console experience, ability to read and analyze click-through rates by query, and understanding of why Core Web Vitals are especially important in a mobile-first market like Vietnam.

Question 7

Your company is about to launch a new English learning app in Vietnam, directly competing with ELSA and Duolingo. You have 3 months and a 500 million VND budget to design the entire marketing funnel from awareness to retention. What would you do?

Accepted Answer

Phase 1 - PRE-LAUNCH (Month 1, 100M VND):
- Build waitlist landing page + SEO blog about English learning
- Seed PR: Education media, edtech KOLs (English teachers on TikTok/YouTube)
- Beta testing: 500 users → collect testimonials and product feedback
- ASO (App Store Optimization): App name, description, screenshots in Vietnamese

Phase 2 - LAUNCH (Month 2, 250M VND):
- Paid UA (User Acquisition): TikTok Ads 40% + Facebook Ads 30% + Google UAC 20% + Influencer 10%
- Creative: 15-30s English learning clips on TikTok proving app effectiveness
- Target: High school students, university students, working professionals 22-35 years
- Referral program: Invite friends → unlock 7-day premium
- PR launch: Major media (VnExpress, Tuổi Trẻ) + Zalo English learning communities

Phase 3 - RETENTION (Month 3, 150M VND):
- Personalized push notifications + Zalo OA for learning reminders
- In-app gamification: Streak, leaderboard, badges
- Email marketing: 7-day onboarding sequence
- Community: Facebook group + TikTok hashtag challenge
- KPI: D1 retention >40%, D7 >20%, D30 >10%

North Star Metric: DAU and average learning time per day This is an expert-level question testing comprehensive strategic thinking. The recruiter wants to see candidates who understand full-funnel marketing, not just acquisition but also activation and retention (Pirate Metrics framework - AARRR). Particularly important for apps is the mobile-first approach and ASO - many candidates overlook App Store Optimization. High bonus points for mentioning the appropriate North Star Metric for edtech (learning time, streak), distinguishing paid UA from organic growth, and a specific strategy to compete with Duolingo (you can't win on budget, you must win on local relevance and community).

Question 8

Tell us about a time you (or your team) had to handle a social media crisis. If you don't have real experience, describe how you would handle this situation: The food brand you manage goes viral on Facebook and TikTok with a video accusing your product of causing food poisoning. The video has 2 million views after 6 hours. What do you do?

Accepted Answer

Hour 0-2 (Assess & Activate):
- Verify the facts: Real incident or fake? Contact QA and legal immediately
- Activate crisis team: Marketing, PR, Legal, CEO, Customer Service
- Monitoring: Track all mentions on Facebook, TikTok, Zalo, online news
- Do NOT delete posts - they will be screenshotted and create more scandal

Hour 2-6 (First Response):
- Post first statement within 2 hours: Acknowledge awareness, investigating, committed to transparency
- Avoid blame-shifting or complete denial before having sufficient facts
- Pause/stop all paid ads (do not run ads during a crisis)
- Brief CS team for consistent comment and message handling

Hour 6-24 (Investigation & Communications):
- Release preliminary investigation results with specific evidence
- If at fault: Sincere apology + compensation action + improvement commitment
- If false accusation: Provide food safety certifications, invite independent testing
- Engage KOLs and press to distribute accurate information

After 24 hours (Recovery):
- Brand recovery content: Behind-the-scenes on safe manufacturing process
- Monitor sentiment for 30 days post-crisis
- Review and update crisis management playbook This question tests the ability to handle high-pressure situations and crisis management thinking in the Vietnamese social media environment - where information spreads extremely fast through Facebook Groups, Zalo Groups, and TikTok comment sections. The recruiter values candidates who know the 'golden' rule of responding within the first 2 hours, not deleting user posts, and the importance of combining owned media (fanpage, ZOA) and earned media (press, KOLs) during a crisis. Special points for candidates with real examples from the Vietnamese market (referencing cases involving Masan, Vinamilk, or local brands).