📘 CCNA Test Savoli
❓ Savol:
Routing jadvalida (Routing Table) tanlash jarayonida Administrative Distance (AD) nimani anglatadi?
✅ To'g'ri javob:
Routing ma'lumotining manbasi qanchalik ishonchli ekanligini ko'rsatuvchi ko'rsatkich.
📝 Izoh:
Administrative Distance (AD) — bu router turli manbalardan olingan marshrutlar orasidan qaysi biriga ustunlik berishni aniqlash uchun ishlatadigan ishonchlilik ko'rsatkichidir.
Agar bitta tarmoqqa bir nechta routing protokoli orqali yo'l mavjud bo'lsa, router AD qiymati eng kichik bott'lgan marshrutni tanlaydi, chunki u eng ishonchli deb hisoblanadi.
@netadminuz
❓ Savol:
Routing jadvalida (Routing Table) tanlash jarayonida Administrative Distance (AD) nimani anglatadi?
✅ To'g'ri javob:
Routing ma'lumotining manbasi qanchalik ishonchli ekanligini ko'rsatuvchi ko'rsatkich.
📝 Izoh:
Administrative Distance (AD) — bu router turli manbalardan olingan marshrutlar orasidan qaysi biriga ustunlik berishni aniqlash uchun ishlatadigan ishonchlilik ko'rsatkichidir.
Agar bitta tarmoqqa bir nechta routing protokoli orqali yo'l mavjud bo'lsa, router AD qiymati eng kichik bott'lgan marshrutni tanlaydi, chunki u eng ishonchli deb hisoblanadi.
@netadminuz
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What happens to a MAC address entry in a switch's MAC address table when the aging timer expires?
Anonymous Quiz
17%
The entry is marked as static and transitions to a permanent state in the table
32%
The entry is moved to a secondary cache table where it remains for half the original aging time
31%
The entry is removed from the table and must be relearned through incoming frames
19%
The entry is refreshed automatically and the timer resets to the default value
Traditional Three-Tier Network Architecture — bu enterprise tarmoqlarda ishlatiladigan klassik 3 qavatli arxitektura.
1. Access Layer
Qurilmalar tarmoqqa shu qatlam orqali ulanadi:
PC
Laptop
IP Phone
Access Point
👉 Vazifasi: endpointlarni ulash.
2. Distribution Layer
Access va Core orasidagi boshqaruv qatlami.
👉 Asosiy vazifalari:
Routing
Inter-VLAN communication
ACL / Filtering
Security policies
Traffic control
3. Core Layer
Tarmoqning eng tezkor backbone qismi.
👉 Asosiy vazifasi:
Katta hajmdagi trafikni juda tez uzatish
Distribution layerlar orasida connectivity ta’minlash
@netadminuz
1. Access Layer
Qurilmalar tarmoqqa shu qatlam orqali ulanadi:
PC
Laptop
IP Phone
Access Point
👉 Vazifasi: endpointlarni ulash.
2. Distribution Layer
Access va Core orasidagi boshqaruv qatlami.
👉 Asosiy vazifalari:
Routing
Inter-VLAN communication
ACL / Filtering
Security policies
Traffic control
3. Core Layer
Tarmoqning eng tezkor backbone qismi.
👉 Asosiy vazifasi:
Katta hajmdagi trafikni juda tez uzatish
Distribution layerlar orasida connectivity ta’minlash
@netadminuz
Which VLAN identifier does a Cisco switch assign to access ports when no explicit VLAN membership configuration has been applied?
Anonymous Quiz
21%
a. VLAN 999 serves as the membership assignment for all access ports in the initial state
21%
b. VLAN 1002 serves as the membership assignment for all access ports by default
40%
c. VLAN 1 serves as the membership assignment for all access ports
17%
d. VLAN 0 serves as the membership assignment for all access ports