Partially answer Pectra Q&A (#318)

* Update pectra-faq.md

* Update pectra-faq.md

* typo

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Co-authored-by: Mário Havel <[email protected]>

docs/wiki/pectra-faq.md

@@ -53,43 +53,58 @@ Up until the Pectra fork, Ethereum accepted two types of withdrawal credentials:
 
 #### **Q:** How do I switch to `0x02` withdrawal credentials? How does it help me?
 There are 2 ways in which a validator can have `0x02` withdrawal credentials:
-1. When you deposit with `0x02` withdrawal credentials
-2. When you consolidate existing validators with `0x02` withdrawal credentials
+1. When you deposit a new validator with `0x02` withdrawal credentials
+2. When you consolidate existing validators to `0x02` withdrawal credentials by sending a transaction to consolidation request address
 
 The `0x02` withdrawal credential enables you to control the validator exit from your execution layer address as well as allows you to possess maximum effective balances of >32 ETH and <2048ETH. This means you can run one validator and have a single validator with a balance of up to 2048 ETH.
 
 #### **Q:** Can I deposit a validator with `0x02` credentials directly?
 Yes, you can deposit a validator with `0x02` credentials directly. This will allow you to have a single validator with a balance of up to 2048 ETH. The `staking-cli` will support the `0x02` withdrawal credentials in the coming months before the Pectra mainnet Ethereum fork. 
 
-#### **Q:** I have a validator with `0x00` credentials, how do i move to `0x02`?
+#### **Q:** I have a validator with `0x00` credentials, how do I move to `0x02`?
 There is no direct way to move from `0x00` to `0x02`. You will need to first move your validator from `0x00` to `0x01` withdrawal credentials with a BLS change operation, then consolidate your validators to `0x02` withdrawal credentials. You can alternatively exit the validator and make a new deposit with `0x02` withdrawal credentials during the deposit.
+
 #### **Q:** I have a validator with `0x01` credentials, how do i move to `0x02`?
 You can consolidate your validators to `0x02` withdrawal credentials. This will allow you to have a single validator with a balance of up to 2048 ETH. The `staking-cli` will support the `0x02` withdrawal credentials in the coming months before the Pectra mainnet Ethereum fork.
+
 #### **Q:** What is MaxEB?
 MaxEB or the [EIP-7251](https://eips.ethereum.org/EIPS/eip-7251) increases the `MAX_EFFECTIVE_BALANCE` to 2048 ETH while keeping the minimum staking balance at 32 ETH. Before MaxEB, any entity that wanted to contribute a large amount of ETH to consensus had to spin up multiple validators because each was capped at a maximum of 32 ETH. EIP-7251 will allow large stake operators to consolidate their ETH into fewer validators, using the same stake with up to 64 times less individual validators. It also allows solo stakers' ETH to be compounded into their existing validator and contribute to their rewards without having to use the exact validator amount. For example, 35 ETH will be considered the validator's effective balance by the protocol, instead of leaving out 3 ETH ineffective and waiting till 64 ETH for 2 validators. Overall, consolidating validators will allow for fewer attestations in the consensus network and easing the bandwidth usage by nodes.
+
 #### **Q:** How do I consolidate my validator?
+Send a transaction to consolidation request address with `source_pubkey != target_pubkey`. Note that both source and target validator must not have `0x00` credential and their exits have not been initiated. 
+
 #### **Q:** What are the validator requirements for consolidation?
 The validators must be active on the beacon chain at the time of consolidation execution. This means they cannot be exiting or pending activation or any other state besides active. Both the source and the target validators must have the same `0x01` withdrawal credentials. If these two conditions are met, then the validator may be consolidated. 
+
 #### **Q:** What happens to my original, individual validators?
 During a consolidation, there is a source and a target validator. The source validator is completely exited and the balance is then transferred to the target validator. The target validator will have the sum of the balances of the source validator and the target validator and will continue to perform its beacon chain duties without any change. 
+
 #### **Q:** When does the balance appear on my consolidated validator?
 Once the source validator has completely exited and ceased performing all duties, the balance will be credited to the target validator. 
 
 #### **Q:** When happens if I consolidate one validator with`0x01` and another with `0x00` credentials?
-The consolidation will fail if both validators don't contain a `0x01` withdrawal credential with the exact same execution layer address. 
+The consolidation request will be deemed invalid and will not be processed. It will fail if both validators don't contain a `0x01` withdrawal credential with the exact same execution layer address. 
+
 #### **Q:** What happens if I consolidate validators that are exited?
 The consolidation will fail as the validators must be active on the beacon chain at the time of consolidation execution.
+
 #### **Q:** How can I partially withdraw some ETH from my `0x02` validator?
-You can issue a EL triggered exit to partially withdraw some ETH from the `0x02` validator. 
+You can issue a EL triggered exit to partially withdraw some ETH from the `0x02` validator. Send a transaction to partial withdrawal request address (pending address to be finalized when Electra goes live on mainnet) with `amount` being a positive non-zero Gwei amount.
+
 #### **Q:** How much ETH can I withdraw from my validator?
-You can withdraw any amount of ETH as long as the validator contains >32ETH at the time of completion of the withdrawal.
+You can withdraw the portion above full validator amount, as long as the validator contains >32ETH at the time of completion of the withdrawal. For example, if you currently have 34ETH, and you request a partial withdrawal, 2ETH will be withdrawn.
+
 #### **Q:** What happens to the ETH balance if my validator has `0x02` credentials and goes below 32 ETH?
-The validator will be exited and the balance will be transferred to the execution layer withdrawal address if the balance goes below 32 ETH.
+A normally behaved validator will not have its balance dropped below 32ETH even if you initiate a partial withdrawal request. This can only be achieved if validator receives penalty. Nothing will happen except reduced rewards. However if balance drops below 16ETH, the validator will be exited and the balance will be transferred to the execution layer withdrawal address.
+
 #### **Q:** What happens to the ETH balance if my validator has `0x02` credentials and goes above 2048 ETH?
 The balance will continue to collect at the validator until the next partial withdrawal is triggered. The validator will however contain a maximum effective balance of 2048 ETH, the remaining balance will be considered ineffective in the beacon chain.
+
 #### **Q:** What balances between 32ETH and 2048ETH can I earn on?
 The effective balance increments 1ETH at a time. This means the accrued balance needs to meet a threshold before the effective balance changes. e.g, If your balance is 33.74 effective balance will be 33. If you effective balance is 33.75 then your effective balance will be 34.
+
 #### **Q:** Can I top up ETH in my `0x02` validator?
 You can either consolidate a validator into the `0x02` validator to increase its balance or make a fresh deposit.
+
 #### **Q:** What happens to the ETH balance if I consolidate and my validator has `0x02` credentials and the total balance goes above 2048 ETH?
-The balance will continue to collect at the validator until the next partial withdrawal is triggered. The validator will however contain a maximum effective balance of 2048 ETH, the remaining balance will be considered ineffective in the beacon chain.
+The balance will continue to collect at the validator until the next partial withdrawal is triggered. The validator will however contain a maximum effective balance of 2048 ETH, the remaining balance will be considered ineffective in the beacon chain. The portion over 2048ETH will be withdrawn when partial withdrawal sweep comes.