5 pronunciation exercises on essential networking acronyms every backend and DevOps engineer needs to say confidently.
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How is "CIDR" pronounced?
CIDR (Classless Inter-Domain Routing) is pronounced "SY-dur" /ˈsaɪdər/ — exactly like the alcoholic drink "cider." Two syllables: SY (/saɪ/ diphthong) + dur (schwa /dər/). Stress falls on the first syllable. This is a widely-used acronym in networking; almost all engineers say "cider." In a sentence: "Allocate a /24 CIDR block for the production VPC subnet."
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How is "VLAN" pronounced?
VLAN (Virtual Local Area Network) is pronounced "VEE-lan" /viː læn/ — two syllables: the letter V (/viː/) followed by "LAN" said as a word (/læn/, rhyming with "can"). Stress is approximately equal, slightly on "LAN." Network engineers universally use this pronunciation. In a sentence: "Separate guest traffic onto a dedicated VLAN to isolate it from corporate resources."
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How is "BGP" pronounced?
BGP (Border Gateway Protocol) is pronounced "BEE-JEE-PEE" /biː dʒiː piː/ — each of the three letters spoken individually with equal weight. This is the standard pronunciation in networking circles worldwide. It is never blended into a single word. In a sentence: "The ISP peering agreement requires configuring BGP sessions with the correct AS numbers on both sides."
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How is "TTL" pronounced?
TTL (Time To Live) is pronounced "TEE-TEE-EL" /tiː tiː ɛl/ — three syllables, each letter spoken separately: T + T + L. Equal stress across all three. It appears in two very different contexts — DNS record TTL (cache duration) and network packet TTL (hop count) — but the pronunciation is identical in both. In a sentence: "Set a short TTL on DNS records before a migration so you can roll back quickly."
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How is "NAT" pronounced?
NAT (Network Address Translation) is pronounced "nat" /næt/ — a single syllable rhyming with "cat" or "bat." The short /æ/ vowel is used. It is almost never spelled out as individual letters. Stress is on the only syllable. In a sentence: "Behind a NAT gateway, all private instances share a single public IP address for outbound traffic."